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Finding the Fourth Proportional to 2,489.19, 3,732.93 and 1,008

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Solution

The fourth proportional to 2,489.19, 3,732.93 and 1,008 is: 1,511.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.19 : 3,732.93 = 1,008 : x
  2. Step 2: Convert to fraction form
    2,489.19/3,732.93 = 1,008/x
  3. Step 3: Cross multiply
    2,489.19x = 3,732.93 × 1,008
  4. Step 4: Simplify right side
    2,489.19x = 3,762,793.44
  5. Step 5: Solve for x
    x = 3,762,793.44/2,489.19
  6. Step 6: Final answer
    x = 1,511.65

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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.