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Finding the Fourth Proportional to 2,687.87, 4,032.07 and 1,044.55

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Solution

The fourth proportional to 2,687.87, 4,032.07 and 1,044.55 is: 1,566.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.87 : 4,032.07 = 1,044.55 : x
  2. Step 2: Convert to fraction form
    2,687.87/4,032.07 = 1,044.55/x
  3. Step 3: Cross multiply
    2,687.87x = 4,032.07 × 1,044.55
  4. Step 4: Simplify right side
    2,687.87x = 4,211,686.03
  5. Step 5: Solve for x
    x = 4,211,686.03/2,687.87
  6. Step 6: Final answer
    x = 1,566.92

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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.