Home / 3,112.38-4,691.88-2,906.13

Finding the Fourth Proportional to 3,112.38, 4,691.88 and 2,906.13

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Solution

The fourth proportional to 3,112.38, 4,691.88 and 2,906.13 is: 4,380.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.38 : 4,691.88 = 2,906.13 : x
  2. Step 2: Convert to fraction form
    3,112.38/4,691.88 = 2,906.13/x
  3. Step 3: Cross multiply
    3,112.38x = 4,691.88 × 2,906.13
  4. Step 4: Simplify right side
    3,112.38x = 13,635,213.22
  5. Step 5: Solve for x
    x = 13,635,213.22/3,112.38
  6. Step 6: Final answer
    x = 4,380.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.