Home / 3,871.25-5,342.27-2,192.62

Finding the Fourth Proportional to 3,871.25, 5,342.27 and 2,192.62

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Solution

The fourth proportional to 3,871.25, 5,342.27 and 2,192.62 is: 3,025.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.25 : 5,342.27 = 2,192.62 : x
  2. Step 2: Convert to fraction form
    3,871.25/5,342.27 = 2,192.62/x
  3. Step 3: Cross multiply
    3,871.25x = 5,342.27 × 2,192.62
  4. Step 4: Simplify right side
    3,871.25x = 11,713,543.73
  5. Step 5: Solve for x
    x = 11,713,543.73/3,871.25
  6. Step 6: Final answer
    x = 3,025.78

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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.