Home / 3,902.80-5,864.60-2,149.20

Finding the Fourth Proportional to 3,902.80, 5,864.60 and 2,149.20

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Solution

The fourth proportional to 3,902.80, 5,864.60 and 2,149.20 is: 3,229.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.80 : 5,864.60 = 2,149.20 : x
  2. Step 2: Convert to fraction form
    3,902.80/5,864.60 = 2,149.20/x
  3. Step 3: Cross multiply
    3,902.80x = 5,864.60 × 2,149.20
  4. Step 4: Simplify right side
    3,902.80x = 12,604,198.32
  5. Step 5: Solve for x
    x = 12,604,198.32/3,902.80
  6. Step 6: Final answer
    x = 3,229.53

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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.