Home / 3,948.85-5,449.30-2,180.33

Finding the Fourth Proportional to 3,948.85, 5,449.30 and 2,180.33

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Solution

The fourth proportional to 3,948.85, 5,449.30 and 2,180.33 is: 3,008.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.85 : 5,449.30 = 2,180.33 : x
  2. Step 2: Convert to fraction form
    3,948.85/5,449.30 = 2,180.33/x
  3. Step 3: Cross multiply
    3,948.85x = 5,449.30 × 2,180.33
  4. Step 4: Simplify right side
    3,948.85x = 11,881,272.27
  5. Step 5: Solve for x
    x = 11,881,272.27/3,948.85
  6. Step 6: Final answer
    x = 3,008.79

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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.