Home / 3,766.80-5,198.32-2,274.42

Finding the Fourth Proportional to 3,766.80, 5,198.32 and 2,274.42

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Solution

The fourth proportional to 3,766.80, 5,198.32 and 2,274.42 is: 3,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,766.80 : 5,198.32 = 2,274.42 : x
  2. Step 2: Convert to fraction form
    3,766.80/5,198.32 = 2,274.42/x
  3. Step 3: Cross multiply
    3,766.80x = 5,198.32 × 2,274.42
  4. Step 4: Simplify right side
    3,766.80x = 11,823,162.97
  5. Step 5: Solve for x
    x = 11,823,162.97/3,766.80
  6. Step 6: Final answer
    x = 3,138.78

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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.