{"id":256541,"date":"2025-07-16T10:14:47","date_gmt":"2025-07-16T10:14:47","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=256541"},"modified":"2025-07-16T10:14:50","modified_gmt":"2025-07-16T10:14:50","slug":"use-the-ratio-proportion-method-to-solve-for-the-unknown","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/16\/use-the-ratio-proportion-method-to-solve-for-the-unknown\/","title":{"rendered":"Use the ratio-proportion method to solve for the unknown."},"content":{"rendered":"\n

Use the ratio-proportion method to solve for the unknown. How many kilograms are in 6.5 pounds? Round the answer to the nearest hundredth. Use the following equation, where the known value is 1 kilogram = 2.2 pounds: x kg6.5 lb=1 kg2.2 lb kg<\/p>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

To solve for how many kilograms are in 6.5 pounds using the ratio-proportion method<\/strong>, we set up a proportion based on the known conversion:<\/p>\n\n\n\n

1 kilogram = 2.2 pounds<\/strong><\/p>\n\n\n\n

We want to find how many kilograms, denoted by x<\/strong>, are equivalent to 6.5 pounds. So we set up the proportion:<\/p>\n\n\n\n

x kg \/ 6.5 lb = 1 kg \/ 2.2 lb<\/strong><\/p>\n\n\n\n

To solve this proportion, we cross-multiply:<\/p>\n\n\n\n

x \u00d7 2.2 = 1 \u00d7 6.5<\/strong><\/p>\n\n\n\n

This gives:<\/p>\n\n\n\n

2.2x = 6.5<\/strong><\/p>\n\n\n\n

Now, solve for x<\/strong> by dividing both sides of the equation by 2.2:<\/p>\n\n\n\n

x = 6.5 \/ 2.2<\/strong><\/p>\n\n\n\n

x \u2248 2.954545<\/strong><\/p>\n\n\n\n

Rounded to the nearest hundredth:<\/p>\n\n\n\n

x \u2248 2.95<\/strong><\/p>\n\n\n\n

Final Answer:<\/h3>\n\n\n\n

2.95 kilograms<\/strong><\/p>\n\n\n\n

\n\n\n\n

Explanation:<\/h3>\n\n\n\n

The ratio-proportion method<\/strong> is useful when converting units based on a fixed relationship. In this case, the fixed relationship is that 1 kilogram is equal to 2.2 pounds<\/strong>. This means that the ratio 1 kg \/ 2.2 lb<\/strong> must remain constant, no matter the values used. By setting the unknown number of kilograms over 6.5 pounds equal to the known ratio, we can cross-multiply and solve for the unknown.<\/p>\n\n\n\n

Cross-multiplying ensures both sides of the proportion remain equal. Once we isolate x<\/strong> (kilograms), we divide and then round the result to the nearest hundredth, since the question asks for this level of precision.<\/p>\n\n\n\n

This method is widely used in science, health, and cooking for converting measurements between different units, such as pounds to kilograms, inches to centimeters, or Fahrenheit to Celsius.<\/p>\n\n\n\n

\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

Use the ratio-proportion method to solve for the unknown. How many kilograms are in 6.5 pounds? Round the answer to the nearest hundredth. Use the following equation, where the known value is 1 kilogram = 2.2 pounds: x kg6.5 lb=1 kg2.2 lb kg The Correct Answer and Explanation is: To solve for how many kilograms […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-256541","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/256541","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=256541"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/256541\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=256541"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=256541"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=256541"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}