Home / 3,179,974.28-4,387,965.81-2,149,723.76

Finding the Fourth Proportional to 3,179,974.28, 4,387,965.81 and 2,149,723.76

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Solution

The fourth proportional to 3,179,974.28, 4,387,965.81 and 2,149,723.76 is: 2,966,349.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,974.28 : 4,387,965.81 = 2,149,723.76 : x
  2. Step 2: Convert to fraction form
    3,179,974.28/4,387,965.81 = 2,149,723.76/x
  3. Step 3: Cross multiply
    3,179,974.28x = 4,387,965.81 × 2,149,723.76
  4. Step 4: Simplify right side
    3,179,974.28x = 9,432,914,359,824.65
  5. Step 5: Solve for x
    x = 9,432,914,359,824.65/3,179,974.28
  6. Step 6: Final answer
    x = 2,966,349.26

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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.