Home / 3,882.20-5,356.50-2,625.80

Finding the Fourth Proportional to 3,882.20, 5,356.50 and 2,625.80

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Solution

The fourth proportional to 3,882.20, 5,356.50 and 2,625.80 is: 3,622.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.20 : 5,356.50 = 2,625.80 : x
  2. Step 2: Convert to fraction form
    3,882.20/5,356.50 = 2,625.80/x
  3. Step 3: Cross multiply
    3,882.20x = 5,356.50 × 2,625.80
  4. Step 4: Simplify right side
    3,882.20x = 14,065,097.70
  5. Step 5: Solve for x
    x = 14,065,097.70/3,882.20
  6. Step 6: Final answer
    x = 3,622.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.