Home / 3,824.80-5,737.20-1,976.20

Finding the Fourth Proportional to 3,824.80, 5,737.20 and 1,976.20

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Solution

The fourth proportional to 3,824.80, 5,737.20 and 1,976.20 is: 2,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,824.80 : 5,737.20 = 1,976.20 : x
  2. Step 2: Convert to fraction form
    3,824.80/5,737.20 = 1,976.20/x
  3. Step 3: Cross multiply
    3,824.80x = 5,737.20 × 1,976.20
  4. Step 4: Simplify right side
    3,824.80x = 11,337,854.64
  5. Step 5: Solve for x
    x = 11,337,854.64/3,824.80
  6. Step 6: Final answer
    x = 2,964.30

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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.