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Finding the Fourth Proportional to 752.10, 1,037.34 and 530.82

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Solution

The fourth proportional to 752.10, 1,037.34 and 530.82 is: 732.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    752.10 : 1,037.34 = 530.82 : x
  2. Step 2: Convert to fraction form
    752.10/1,037.34 = 530.82/x
  3. Step 3: Cross multiply
    752.10x = 1,037.34 × 530.82
  4. Step 4: Simplify right side
    752.10x = 550,640.82
  5. Step 5: Solve for x
    x = 550,640.82/752.10
  6. Step 6: Final answer
    x = 732.14

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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.