Home / 8,930.62-13,391.61-2,689.48

Finding the Fourth Proportional to 8,930.62, 13,391.61 and 2,689.48

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Solution

The fourth proportional to 8,930.62, 13,391.61 and 2,689.48 is: 4,032.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.62 : 13,391.61 = 2,689.48 : x
  2. Step 2: Convert to fraction form
    8,930.62/13,391.61 = 2,689.48/x
  3. Step 3: Cross multiply
    8,930.62x = 13,391.61 × 2,689.48
  4. Step 4: Simplify right side
    8,930.62x = 36,016,467.26
  5. Step 5: Solve for x
    x = 36,016,467.26/8,930.62
  6. Step 6: Final answer
    x = 4,032.92

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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.