Home / 3,691.12-5,534.52-1,382.80

Finding the Fourth Proportional to 3,691.12, 5,534.52 and 1,382.80

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Solution

The fourth proportional to 3,691.12, 5,534.52 and 1,382.80 is: 2,073.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.12 : 5,534.52 = 1,382.80 : x
  2. Step 2: Convert to fraction form
    3,691.12/5,534.52 = 1,382.80/x
  3. Step 3: Cross multiply
    3,691.12x = 5,534.52 × 1,382.80
  4. Step 4: Simplify right side
    3,691.12x = 7,653,134.26
  5. Step 5: Solve for x
    x = 7,653,134.26/3,691.12
  6. Step 6: Final answer
    x = 2,073.39

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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.