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Finding the Fourth Proportional to 752.24, 1,037.61 and 542.95

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Solution

The fourth proportional to 752.24, 1,037.61 and 542.95 is: 748.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    752.24 : 1,037.61 = 542.95 : x
  2. Step 2: Convert to fraction form
    752.24/1,037.61 = 542.95/x
  3. Step 3: Cross multiply
    752.24x = 1,037.61 × 542.95
  4. Step 4: Simplify right side
    752.24x = 563,373.59
  5. Step 5: Solve for x
    x = 563,373.59/752.24
  6. Step 6: Final answer
    x = 748.93

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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.