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Finding the Fourth Proportional to 1,456.56, 2,184.92 and 634.89

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Solution

The fourth proportional to 1,456.56, 2,184.92 and 634.89 is: 952.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456.56 : 2,184.92 = 634.89 : x
  2. Step 2: Convert to fraction form
    1,456.56/2,184.92 = 634.89/x
  3. Step 3: Cross multiply
    1,456.56x = 2,184.92 × 634.89
  4. Step 4: Simplify right side
    1,456.56x = 1,387,180.68
  5. Step 5: Solve for x
    x = 1,387,180.68/1,456.56
  6. Step 6: Final answer
    x = 952.37

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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.