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 involve?

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

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x = 35.

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What is the relationship between equivalent ratios?

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Equivalent ratios represent the same relationship between two quantities.

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What is a unit rate?

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A unit rate is a ratio that compares a quantity to one unit of another quantity.

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How can you check if two ratios are equivalent?

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