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Finding the Fourth Proportional to 2,424.78, 3,637.41 and 963.61

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Solution

The fourth proportional to 2,424.78, 3,637.41 and 963.61 is: 1,445.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,424.78 : 3,637.41 = 963.61 : x
  2. Step 2: Convert to fraction form
    2,424.78/3,637.41 = 963.61/x
  3. Step 3: Cross multiply
    2,424.78x = 3,637.41 × 963.61
  4. Step 4: Simplify right side
    2,424.78x = 3,505,044.65
  5. Step 5: Solve for x
    x = 3,505,044.65/2,424.78
  6. Step 6: Final answer
    x = 1,445.51

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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.