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Finding the Fourth Proportional to 1,592.36, 2,387.82 and 617.72

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Solution

The fourth proportional to 1,592.36, 2,387.82 and 617.72 is: 926.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,592.36 : 2,387.82 = 617.72 : x
  2. Step 2: Convert to fraction form
    1,592.36/2,387.82 = 617.72/x
  3. Step 3: Cross multiply
    1,592.36x = 2,387.82 × 617.72
  4. Step 4: Simplify right side
    1,592.36x = 1,475,004.17
  5. Step 5: Solve for x
    x = 1,475,004.17/1,592.36
  6. Step 6: Final answer
    x = 926.30

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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.