Home / 2,689,891.28-4,034,049.60-2,215,399.76

Finding the Fourth Proportional to 2,689,891.28, 4,034,049.60 and 2,215,399.76

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Solution

The fourth proportional to 2,689,891.28, 4,034,049.60 and 2,215,399.76 is: 3,322,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689,891.28 : 4,034,049.60 = 2,215,399.76 : x
  2. Step 2: Convert to fraction form
    2,689,891.28/4,034,049.60 = 2,215,399.76/x
  3. Step 3: Cross multiply
    2,689,891.28x = 4,034,049.60 × 2,215,399.76
  4. Step 4: Simplify right side
    2,689,891.28x = 8,937,032,515,668.10
  5. Step 5: Solve for x
    x = 8,937,032,515,668.10/2,689,891.28
  6. Step 6: Final answer
    x = 3,322,451.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.