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Finding the Fourth Proportional to 752.96, 1,041.37 and 674.15

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Solution

The fourth proportional to 752.96, 1,041.37 and 674.15 is: 932.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    752.96 : 1,041.37 = 674.15 : x
  2. Step 2: Convert to fraction form
    752.96/1,041.37 = 674.15/x
  3. Step 3: Cross multiply
    752.96x = 1,041.37 × 674.15
  4. Step 4: Simplify right side
    752.96x = 702,032.69
  5. Step 5: Solve for x
    x = 702,032.69/752.96
  6. Step 6: Final answer
    x = 932.36

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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.