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Finding the Fourth Proportional to 3,672.39, 5,067.90 and 1,993.85

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Solution

The fourth proportional to 3,672.39, 5,067.90 and 1,993.85 is: 2,751.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.39 : 5,067.90 = 1,993.85 : x
  2. Step 2: Convert to fraction form
    3,672.39/5,067.90 = 1,993.85/x
  3. Step 3: Cross multiply
    3,672.39x = 5,067.90 × 1,993.85
  4. Step 4: Simplify right side
    3,672.39x = 10,104,607.08
  5. Step 5: Solve for x
    x = 10,104,607.08/3,672.39
  6. Step 6: Final answer
    x = 2,751.51

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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.