Home / 2,422.46-3,634.28-691.09

Finding the Fourth Proportional to 2,422.46, 3,634.28 and 691.09

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Solution

The fourth proportional to 2,422.46, 3,634.28 and 691.09 is: 1,036.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.46 : 3,634.28 = 691.09 : x
  2. Step 2: Convert to fraction form
    2,422.46/3,634.28 = 691.09/x
  3. Step 3: Cross multiply
    2,422.46x = 3,634.28 × 691.09
  4. Step 4: Simplify right side
    2,422.46x = 2,511,614.57
  5. Step 5: Solve for x
    x = 2,511,614.57/2,422.46
  6. Step 6: Final answer
    x = 1,036.80

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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.