Home / 3,081.80-4,627.38-2,691.56

Finding the Fourth Proportional to 3,081.80, 4,627.38 and 2,691.56

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Solution

The fourth proportional to 3,081.80, 4,627.38 and 2,691.56 is: 4,041.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.80 : 4,627.38 = 2,691.56 : x
  2. Step 2: Convert to fraction form
    3,081.80/4,627.38 = 2,691.56/x
  3. Step 3: Cross multiply
    3,081.80x = 4,627.38 × 2,691.56
  4. Step 4: Simplify right side
    3,081.80x = 12,454,870.91
  5. Step 5: Solve for x
    x = 12,454,870.91/3,081.80
  6. Step 6: Final answer
    x = 4,041.43

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1.5x scale

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.