Home / 5,132.56-7,080.85-3,937.76

Finding the Fourth Proportional to 5,132.56, 7,080.85 and 3,937.76

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Solution

The fourth proportional to 5,132.56, 7,080.85 and 3,937.76 is: 5,432.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.56 : 7,080.85 = 3,937.76 : x
  2. Step 2: Convert to fraction form
    5,132.56/7,080.85 = 3,937.76/x
  3. Step 3: Cross multiply
    5,132.56x = 7,080.85 × 3,937.76
  4. Step 4: Simplify right side
    5,132.56x = 27,882,687.90
  5. Step 5: Solve for x
    x = 27,882,687.90/5,132.56
  6. Step 6: Final answer
    x = 5,432.51

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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.