Home / 3,949.25-5,449.98-2,180.88

Finding the Fourth Proportional to 3,949.25, 5,449.98 and 2,180.88

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Solution

The fourth proportional to 3,949.25, 5,449.98 and 2,180.88 is: 3,009.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.25 : 5,449.98 = 2,180.88 : x
  2. Step 2: Convert to fraction form
    3,949.25/5,449.98 = 2,180.88/x
  3. Step 3: Cross multiply
    3,949.25x = 5,449.98 × 2,180.88
  4. Step 4: Simplify right side
    3,949.25x = 11,885,752.38
  5. Step 5: Solve for x
    x = 11,885,752.38/3,949.25
  6. Step 6: Final answer
    x = 3,009.63

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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.