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Finding the Fourth Proportional to 3,672.22, 5,067.92 and 2,078.87

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Solution

The fourth proportional to 3,672.22, 5,067.92 and 2,078.87 is: 2,868.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.22 : 5,067.92 = 2,078.87 : x
  2. Step 2: Convert to fraction form
    3,672.22/5,067.92 = 2,078.87/x
  3. Step 3: Cross multiply
    3,672.22x = 5,067.92 × 2,078.87
  4. Step 4: Simplify right side
    3,672.22x = 10,535,536.46
  5. Step 5: Solve for x
    x = 10,535,536.46/3,672.22
  6. Step 6: Final answer
    x = 2,868.98

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1.5x scale

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.