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Finding the Fourth Proportional to 2,387.52, 3,580.50 and 927.18

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Solution

The fourth proportional to 2,387.52, 3,580.50 and 927.18 is: 1,390.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.52 : 3,580.50 = 927.18 : x
  2. Step 2: Convert to fraction form
    2,387.52/3,580.50 = 927.18/x
  3. Step 3: Cross multiply
    2,387.52x = 3,580.50 × 927.18
  4. Step 4: Simplify right side
    2,387.52x = 3,319,767.99
  5. Step 5: Solve for x
    x = 3,319,767.99/2,387.52
  6. Step 6: Final answer
    x = 1,390.47

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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.