Home / 5,515.38-7,609.50-3,157.07

Finding the Fourth Proportional to 5,515.38, 7,609.50 and 3,157.07

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Solution

The fourth proportional to 5,515.38, 7,609.50 and 3,157.07 is: 4,355.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.38 : 7,609.50 = 3,157.07 : x
  2. Step 2: Convert to fraction form
    5,515.38/7,609.50 = 3,157.07/x
  3. Step 3: Cross multiply
    5,515.38x = 7,609.50 × 3,157.07
  4. Step 4: Simplify right side
    5,515.38x = 24,023,686.12
  5. Step 5: Solve for x
    x = 24,023,686.12/5,515.38
  6. Step 6: Final answer
    x = 4,355.76

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.