Home / 3,679.86-5,512.82-2,854.08

Finding the Fourth Proportional to 3,679.86, 5,512.82 and 2,854.08

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Solution

The fourth proportional to 3,679.86, 5,512.82 and 2,854.08 is: 4,275.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.86 : 5,512.82 = 2,854.08 : x
  2. Step 2: Convert to fraction form
    3,679.86/5,512.82 = 2,854.08/x
  3. Step 3: Cross multiply
    3,679.86x = 5,512.82 × 2,854.08
  4. Step 4: Simplify right side
    3,679.86x = 15,734,029.31
  5. Step 5: Solve for x
    x = 15,734,029.31/3,679.86
  6. Step 6: Final answer
    x = 4,275.71

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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.