Solving Proportions

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What is a proportion?

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A proportion is an equation that states that two ratios are equal.

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How do you solve a proportion?

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To solve a proportion, cross-multiply the terms and then isolate the variable.

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What does cross-multiplication mean?

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Cross-multiplication involves multiplying the numerator of one ratio by the denominator of the other ratio.

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y = 22.4.

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n = 5.5.

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How do you check if two ratios are in proportion?

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You can check by cross-multiplying and seeing if the products are equal.

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Yes, this is true.

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m = 90.