Home / 5,542.20-7,649.28-3,185.88

Finding the Fourth Proportional to 5,542.20, 7,649.28 and 3,185.88

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Solution

The fourth proportional to 5,542.20, 7,649.28 and 3,185.88 is: 4,397.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,542.20 : 7,649.28 = 3,185.88 : x
  2. Step 2: Convert to fraction form
    5,542.20/7,649.28 = 3,185.88/x
  3. Step 3: Cross multiply
    5,542.20x = 7,649.28 × 3,185.88
  4. Step 4: Simplify right side
    5,542.20x = 24,369,688.17
  5. Step 5: Solve for x
    x = 24,369,688.17/5,542.20
  6. Step 6: Final answer
    x = 4,397.11

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1.5x scale

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.