Home / 2,489.20-3,734.82-1,028.08

Finding the Fourth Proportional to 2,489.20, 3,734.82 and 1,028.08

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Solution

The fourth proportional to 2,489.20, 3,734.82 and 1,028.08 is: 1,542.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.20 : 3,734.82 = 1,028.08 : x
  2. Step 2: Convert to fraction form
    2,489.20/3,734.82 = 1,028.08/x
  3. Step 3: Cross multiply
    2,489.20x = 3,734.82 × 1,028.08
  4. Step 4: Simplify right side
    2,489.20x = 3,839,693.75
  5. Step 5: Solve for x
    x = 3,839,693.75/2,489.20
  6. Step 6: Final answer
    x = 1,542.54

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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.