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Finding the Fourth Proportional to 1,241.52, 1,862.20 and 754.44

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Solution

The fourth proportional to 1,241.52, 1,862.20 and 754.44 is: 1,131.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241.52 : 1,862.20 = 754.44 : x
  2. Step 2: Convert to fraction form
    1,241.52/1,862.20 = 754.44/x
  3. Step 3: Cross multiply
    1,241.52x = 1,862.20 × 754.44
  4. Step 4: Simplify right side
    1,241.52x = 1,404,918.17
  5. Step 5: Solve for x
    x = 1,404,918.17/1,241.52
  6. Step 6: Final answer
    x = 1,131.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.