What is the cross product of the ratios $$\frac{a}{b}$$ and $$\frac{c}{d}$$ ?

The cross product is $$a \times d = b \times c$$ .

If $$\frac{a}{b} = \frac{c}{d}$$ , what can you say about the values of a, b, c, and d?

The ratios are equivalent, meaning they represent the same relationship.

What is an example of a real-life situation that can be modeled with proportions?

Cooking recipes often use proportions to scale ingredients.

What is the relationship between equivalent fractions and proportions?

Equivalent fractions represent the same value and can be used to form proportions.

How can you check if two fractions are equivalent?

Cross-multiply and see if the products are equal.

What is the importance of understanding proportions in mathematics?

Understanding proportions is essential for solving problems in geometry, ratios, and real-world applications.

A ratio is a comparison of two quantities, showing the relative size of one quantity to another.

Proportions Warm Up Flashcards

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15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is a proportion?

Back

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

2.

FLASHCARD QUESTION

Front

How do you determine if two ratios form a proportion?

Back

Two ratios form a proportion if the cross products are equal.

3.

FLASHCARD QUESTION

Front

Back

4.

FLASHCARD QUESTION

Front

Back

Yes, they form a proportion.

5.

FLASHCARD QUESTION

Front

Back

No, they do not form a proportion.

6.

FLASHCARD QUESTION

Front

Back

Yes, they form a proportion.

7.

FLASHCARD QUESTION

Front

Back

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