Home / 3,942,098.88-5,440,109.76-2,131,275.84

Finding the Fourth Proportional to 3,942,098.88, 5,440,109.76 and 2,131,275.84

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Solution

The fourth proportional to 3,942,098.88, 5,440,109.76 and 2,131,275.84 is: 2,941,167.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942,098.88 : 5,440,109.76 = 2,131,275.84 : x
  2. Step 2: Convert to fraction form
    3,942,098.88/5,440,109.76 = 2,131,275.84/x
  3. Step 3: Cross multiply
    3,942,098.88x = 5,440,109.76 × 2,131,275.84
  4. Step 4: Simplify right side
    3,942,098.88x = 11,594,374,498,436.20
  5. Step 5: Solve for x
    x = 11,594,374,498,436.20/3,942,098.88
  6. Step 6: Final answer
    x = 2,941,167.85

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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.