Home / 3,912.38-5,398.94-2,234.32

Finding the Fourth Proportional to 3,912.38, 5,398.94 and 2,234.32

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Solution

The fourth proportional to 3,912.38, 5,398.94 and 2,234.32 is: 3,083.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.38 : 5,398.94 = 2,234.32 : x
  2. Step 2: Convert to fraction form
    3,912.38/5,398.94 = 2,234.32/x
  3. Step 3: Cross multiply
    3,912.38x = 5,398.94 × 2,234.32
  4. Step 4: Simplify right side
    3,912.38x = 12,062,959.62
  5. Step 5: Solve for x
    x = 12,062,959.62/3,912.38
  6. Step 6: Final answer
    x = 3,083.28

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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.