Home / 5,517.82-8,278.56-2,229.13

Finding the Fourth Proportional to 5,517.82, 8,278.56 and 2,229.13

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Solution

The fourth proportional to 5,517.82, 8,278.56 and 2,229.13 is: 3,344.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.82 : 8,278.56 = 2,229.13 : x
  2. Step 2: Convert to fraction form
    5,517.82/8,278.56 = 2,229.13/x
  3. Step 3: Cross multiply
    5,517.82x = 8,278.56 × 2,229.13
  4. Step 4: Simplify right side
    5,517.82x = 18,453,986.45
  5. Step 5: Solve for x
    x = 18,453,986.45/5,517.82
  6. Step 6: Final answer
    x = 3,344.43

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1.5x scale

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.