Home / 3,948.82-5,449.27-2,602.78

Finding the Fourth Proportional to 3,948.82, 5,449.27 and 2,602.78

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Solution

The fourth proportional to 3,948.82, 5,449.27 and 2,602.78 is: 3,591.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.82 : 5,449.27 = 2,602.78 : x
  2. Step 2: Convert to fraction form
    3,948.82/5,449.27 = 2,602.78/x
  3. Step 3: Cross multiply
    3,948.82x = 5,449.27 × 2,602.78
  4. Step 4: Simplify right side
    3,948.82x = 14,183,250.97
  5. Step 5: Solve for x
    x = 14,183,250.97/3,948.82
  6. Step 6: Final answer
    x = 3,591.77

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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.