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Finding the Fourth Proportional to 752.94, 1,037.12 and 531.51

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Solution

The fourth proportional to 752.94, 1,037.12 and 531.51 is: 732.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    752.94 : 1,037.12 = 531.51 : x
  2. Step 2: Convert to fraction form
    752.94/1,037.12 = 531.51/x
  3. Step 3: Cross multiply
    752.94x = 1,037.12 × 531.51
  4. Step 4: Simplify right side
    752.94x = 551,236.99
  5. Step 5: Solve for x
    x = 551,236.99/752.94
  6. Step 6: Final answer
    x = 732.11

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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.