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Finding the Fourth Proportional to 5,691.76, 8,523.36 and 3,605.44

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Solution

The fourth proportional to 5,691.76, 8,523.36 and 3,605.44 is: 5,399.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.76 : 8,523.36 = 3,605.44 : x
  2. Step 2: Convert to fraction form
    5,691.76/8,523.36 = 3,605.44/x
  3. Step 3: Cross multiply
    5,691.76x = 8,523.36 × 3,605.44
  4. Step 4: Simplify right side
    5,691.76x = 30,730,463.08
  5. Step 5: Solve for x
    x = 30,730,463.08/5,691.76
  6. Step 6: Final answer
    x = 5,399.11

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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.