Home / 3,456.11-5,184.17-991.08

Finding the Fourth Proportional to 3,456.11, 5,184.17 and 991.08

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Solution

The fourth proportional to 3,456.11, 5,184.17 and 991.08 is: 1,486.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.11 : 5,184.17 = 991.08 : x
  2. Step 2: Convert to fraction form
    3,456.11/5,184.17 = 991.08/x
  3. Step 3: Cross multiply
    3,456.11x = 5,184.17 × 991.08
  4. Step 4: Simplify right side
    3,456.11x = 5,137,927.20
  5. Step 5: Solve for x
    x = 5,137,927.20/3,456.11
  6. Step 6: Final answer
    x = 1,486.62

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Double scale
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Similar ratio
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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.