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Finding the Fourth Proportional to 1,553.24, 2,329.84 and 731.06

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Solution

The fourth proportional to 1,553.24, 2,329.84 and 731.06 is: 1,096.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.24 : 2,329.84 = 731.06 : x
  2. Step 2: Convert to fraction form
    1,553.24/2,329.84 = 731.06/x
  3. Step 3: Cross multiply
    1,553.24x = 2,329.84 × 731.06
  4. Step 4: Simplify right side
    1,553.24x = 1,703,252.83
  5. Step 5: Solve for x
    x = 1,703,252.83/1,553.24
  6. Step 6: Final answer
    x = 1,096.58

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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.