Home / 5,414.15-8,120.01-2,489.65

Finding the Fourth Proportional to 5,414.15, 8,120.01 and 2,489.65

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Solution

The fourth proportional to 5,414.15, 8,120.01 and 2,489.65 is: 3,733.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.15 : 8,120.01 = 2,489.65 : x
  2. Step 2: Convert to fraction form
    5,414.15/8,120.01 = 2,489.65/x
  3. Step 3: Cross multiply
    5,414.15x = 8,120.01 × 2,489.65
  4. Step 4: Simplify right side
    5,414.15x = 20,215,942.30
  5. Step 5: Solve for x
    x = 20,215,942.30/5,414.15
  6. Step 6: Final answer
    x = 3,733.91

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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.