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Finding the Fourth Proportional to 752.09, 1,123.27 and 710.17

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Solution

The fourth proportional to 752.09, 1,123.27 and 710.17 is: 1,060.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    752.09 : 1,123.27 = 710.17 : x
  2. Step 2: Convert to fraction form
    752.09/1,123.27 = 710.17/x
  3. Step 3: Cross multiply
    752.09x = 1,123.27 × 710.17
  4. Step 4: Simplify right side
    752.09x = 797,708.07
  5. Step 5: Solve for x
    x = 797,708.07/752.09
  6. Step 6: Final answer
    x = 1,060.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.