Home / 7,087.42-10,631.13-2,157.05

Finding the Fourth Proportional to 7,087.42, 10,631.13 and 2,157.05

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Solution

The fourth proportional to 7,087.42, 10,631.13 and 2,157.05 is: 3,235.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,087.42 : 10,631.13 = 2,157.05 : x
  2. Step 2: Convert to fraction form
    7,087.42/10,631.13 = 2,157.05/x
  3. Step 3: Cross multiply
    7,087.42x = 10,631.13 × 2,157.05
  4. Step 4: Simplify right side
    7,087.42x = 22,931,849.79
  5. Step 5: Solve for x
    x = 22,931,849.79/7,087.42
  6. Step 6: Final answer
    x = 3,235.57

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.