Home / 5,538.20-7,642.22-3,179.88

Finding the Fourth Proportional to 5,538.20, 7,642.22 and 3,179.88

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Solution

The fourth proportional to 5,538.20, 7,642.22 and 3,179.88 is: 4,387.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.20 : 7,642.22 = 3,179.88 : x
  2. Step 2: Convert to fraction form
    5,538.20/7,642.22 = 3,179.88/x
  3. Step 3: Cross multiply
    5,538.20x = 7,642.22 × 3,179.88
  4. Step 4: Simplify right side
    5,538.20x = 24,301,326.63
  5. Step 5: Solve for x
    x = 24,301,326.63/5,538.20
  6. Step 6: Final answer
    x = 4,387.95

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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.