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Finding the Fourth Proportional to 7,171.56, 10,753.11 and 4,251.90

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Solution

The fourth proportional to 7,171.56, 10,753.11 and 4,251.90 is: 6,375.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171.56 : 10,753.11 = 4,251.90 : x
  2. Step 2: Convert to fraction form
    7,171.56/10,753.11 = 4,251.90/x
  3. Step 3: Cross multiply
    7,171.56x = 10,753.11 × 4,251.90
  4. Step 4: Simplify right side
    7,171.56x = 45,721,148.41
  5. Step 5: Solve for x
    x = 45,721,148.41/7,171.56
  6. Step 6: Final answer
    x = 6,375.34

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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.