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Finding the Fourth Proportional to 1,251.28, 1,877.46 and 602.56

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Solution

The fourth proportional to 1,251.28, 1,877.46 and 602.56 is: 904.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251.28 : 1,877.46 = 602.56 : x
  2. Step 2: Convert to fraction form
    1,251.28/1,877.46 = 602.56/x
  3. Step 3: Cross multiply
    1,251.28x = 1,877.46 × 602.56
  4. Step 4: Simplify right side
    1,251.28x = 1,131,282.30
  5. Step 5: Solve for x
    x = 1,131,282.30/1,251.28
  6. Step 6: Final answer
    x = 904.10

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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.