Home / 4,042.80-5,577.24-2,449.20

Finding the Fourth Proportional to 4,042.80, 5,577.24 and 2,449.20

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Solution

The fourth proportional to 4,042.80, 5,577.24 and 2,449.20 is: 3,378.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,042.80 : 5,577.24 = 2,449.20 : x
  2. Step 2: Convert to fraction form
    4,042.80/5,577.24 = 2,449.20/x
  3. Step 3: Cross multiply
    4,042.80x = 5,577.24 × 2,449.20
  4. Step 4: Simplify right side
    4,042.80x = 13,659,776.21
  5. Step 5: Solve for x
    x = 13,659,776.21/4,042.80
  6. Step 6: Final answer
    x = 3,378.79

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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.