Home / 3,454.12-5,180.48-2,872.86

Finding the Fourth Proportional to 3,454.12, 5,180.48 and 2,872.86

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Solution

The fourth proportional to 3,454.12, 5,180.48 and 2,872.86 is: 4,308.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,454.12 : 5,180.48 = 2,872.86 : x
  2. Step 2: Convert to fraction form
    3,454.12/5,180.48 = 2,872.86/x
  3. Step 3: Cross multiply
    3,454.12x = 5,180.48 × 2,872.86
  4. Step 4: Simplify right side
    3,454.12x = 14,882,793.77
  5. Step 5: Solve for x
    x = 14,882,793.77/3,454.12
  6. Step 6: Final answer
    x = 4,308.71

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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.