Home / 3,781,780.38-5,217,140.88-2,231,990.64

Finding the Fourth Proportional to 3,781,780.38, 5,217,140.88 and 2,231,990.64

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Solution

The fourth proportional to 3,781,780.38, 5,217,140.88 and 2,231,990.64 is: 3,079,134.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781,780.38 : 5,217,140.88 = 2,231,990.64 : x
  2. Step 2: Convert to fraction form
    3,781,780.38/5,217,140.88 = 2,231,990.64/x
  3. Step 3: Cross multiply
    3,781,780.38x = 5,217,140.88 × 2,231,990.64
  4. Step 4: Simplify right side
    3,781,780.38x = 11,644,609,611,721.36
  5. Step 5: Solve for x
    x = 11,644,609,611,721.36/3,781,780.38
  6. Step 6: Final answer
    x = 3,079,134.28

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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.