Home / 3,949.95-5,447.31-3,635.88

Finding the Fourth Proportional to 3,949.95, 5,447.31 and 3,635.88

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Solution

The fourth proportional to 3,949.95, 5,447.31 and 3,635.88 is: 5,014.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.95 : 5,447.31 = 3,635.88 : x
  2. Step 2: Convert to fraction form
    3,949.95/5,447.31 = 3,635.88/x
  3. Step 3: Cross multiply
    3,949.95x = 5,447.31 × 3,635.88
  4. Step 4: Simplify right side
    3,949.95x = 19,805,765.48
  5. Step 5: Solve for x
    x = 19,805,765.48/3,949.95
  6. Step 6: Final answer
    x = 5,014.18

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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.