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Finding the Fourth Proportional to 752.14, 1,037.81 and 565.23

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Solution

The fourth proportional to 752.14, 1,037.81 and 565.23 is: 779.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    752.14 : 1,037.81 = 565.23 : x
  2. Step 2: Convert to fraction form
    752.14/1,037.81 = 565.23/x
  3. Step 3: Cross multiply
    752.14x = 1,037.81 × 565.23
  4. Step 4: Simplify right side
    752.14x = 586,601.35
  5. Step 5: Solve for x
    x = 586,601.35/752.14
  6. Step 6: Final answer
    x = 779.91

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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.