Home / 5,616.84-8,422.62-2,691.90

Finding the Fourth Proportional to 5,616.84, 8,422.62 and 2,691.90

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Solution

The fourth proportional to 5,616.84, 8,422.62 and 2,691.90 is: 4,036.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616.84 : 8,422.62 = 2,691.90 : x
  2. Step 2: Convert to fraction form
    5,616.84/8,422.62 = 2,691.90/x
  3. Step 3: Cross multiply
    5,616.84x = 8,422.62 × 2,691.90
  4. Step 4: Simplify right side
    5,616.84x = 22,672,850.78
  5. Step 5: Solve for x
    x = 22,672,850.78/5,616.84
  6. Step 6: Final answer
    x = 4,036.58

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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.