Home / 4,149.97-5,723.79-2,821.43

Finding the Fourth Proportional to 4,149.97, 5,723.79 and 2,821.43

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Solution

The fourth proportional to 4,149.97, 5,723.79 and 2,821.43 is: 3,891.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,149.97 : 5,723.79 = 2,821.43 : x
  2. Step 2: Convert to fraction form
    4,149.97/5,723.79 = 2,821.43/x
  3. Step 3: Cross multiply
    4,149.97x = 5,723.79 × 2,821.43
  4. Step 4: Simplify right side
    4,149.97x = 16,149,272.82
  5. Step 5: Solve for x
    x = 16,149,272.82/4,149.97
  6. Step 6: Final answer
    x = 3,891.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.