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Finding the Fourth Proportional to 1,124.33, 1,552.32 and 726.17

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Solution

The fourth proportional to 1,124.33, 1,552.32 and 726.17 is: 1,002.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.33 : 1,552.32 = 726.17 : x
  2. Step 2: Convert to fraction form
    1,124.33/1,552.32 = 726.17/x
  3. Step 3: Cross multiply
    1,124.33x = 1,552.32 × 726.17
  4. Step 4: Simplify right side
    1,124.33x = 1,127,248.21
  5. Step 5: Solve for x
    x = 1,127,248.21/1,124.33
  6. Step 6: Final answer
    x = 1,002.60

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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.