Home / 3,380.92-5,079.84-2,148.82

Finding the Fourth Proportional to 3,380.92, 5,079.84 and 2,148.82

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Solution

The fourth proportional to 3,380.92, 5,079.84 and 2,148.82 is: 3,228.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.92 : 5,079.84 = 2,148.82 : x
  2. Step 2: Convert to fraction form
    3,380.92/5,079.84 = 2,148.82/x
  3. Step 3: Cross multiply
    3,380.92x = 5,079.84 × 2,148.82
  4. Step 4: Simplify right side
    3,380.92x = 10,915,661.79
  5. Step 5: Solve for x
    x = 10,915,661.79/3,380.92
  6. Step 6: Final answer
    x = 3,228.61

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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.