Home / 3,949.74-5,450.04-2,355.90

Finding the Fourth Proportional to 3,949.74, 5,450.04 and 2,355.90

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Solution

The fourth proportional to 3,949.74, 5,450.04 and 2,355.90 is: 3,250.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.74 : 5,450.04 = 2,355.90 : x
  2. Step 2: Convert to fraction form
    3,949.74/5,450.04 = 2,355.90/x
  3. Step 3: Cross multiply
    3,949.74x = 5,450.04 × 2,355.90
  4. Step 4: Simplify right side
    3,949.74x = 12,839,749.24
  5. Step 5: Solve for x
    x = 12,839,749.24/3,949.74
  6. Step 6: Final answer
    x = 3,250.78

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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.