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Finding the Fourth Proportional to 1,592.67, 2,387.79 and 726.38

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Solution

The fourth proportional to 1,592.67, 2,387.79 and 726.38 is: 1,089.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,592.67 : 2,387.79 = 726.38 : x
  2. Step 2: Convert to fraction form
    1,592.67/2,387.79 = 726.38/x
  3. Step 3: Cross multiply
    1,592.67x = 2,387.79 × 726.38
  4. Step 4: Simplify right side
    1,592.67x = 1,734,430.96
  5. Step 5: Solve for x
    x = 1,734,430.96/1,592.67
  6. Step 6: Final answer
    x = 1,089.01

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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.