Home / 2,500.20-3,742.20-1,949.40

Finding the Fourth Proportional to 2,500.20, 3,742.20 and 1,949.40

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Solution

The fourth proportional to 2,500.20, 3,742.20 and 1,949.40 is: 2,917.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,500.20 : 3,742.20 = 1,949.40 : x
  2. Step 2: Convert to fraction form
    2,500.20/3,742.20 = 1,949.40/x
  3. Step 3: Cross multiply
    2,500.20x = 3,742.20 × 1,949.40
  4. Step 4: Simplify right side
    2,500.20x = 7,295,044.68
  5. Step 5: Solve for x
    x = 7,295,044.68/2,500.20
  6. Step 6: Final answer
    x = 2,917.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.