Home / 9,171.90-13,758.28-2,932.20

Finding the Fourth Proportional to 9,171.90, 13,758.28 and 2,932.20

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Solution

The fourth proportional to 9,171.90, 13,758.28 and 2,932.20 is: 4,398.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,171.90 : 13,758.28 = 2,932.20 : x
  2. Step 2: Convert to fraction form
    9,171.90/13,758.28 = 2,932.20/x
  3. Step 3: Cross multiply
    9,171.90x = 13,758.28 × 2,932.20
  4. Step 4: Simplify right side
    9,171.90x = 40,342,028.62
  5. Step 5: Solve for x
    x = 40,342,028.62/9,171.90
  6. Step 6: Final answer
    x = 4,398.44

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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.