Home / 2,489.12-3,733.74-1,028.38

Finding the Fourth Proportional to 2,489.12, 3,733.74 and 1,028.38

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Solution

The fourth proportional to 2,489.12, 3,733.74 and 1,028.38 is: 1,542.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.12 : 3,733.74 = 1,028.38 : x
  2. Step 2: Convert to fraction form
    2,489.12/3,733.74 = 1,028.38/x
  3. Step 3: Cross multiply
    2,489.12x = 3,733.74 × 1,028.38
  4. Step 4: Simplify right side
    2,489.12x = 3,839,703.54
  5. Step 5: Solve for x
    x = 3,839,703.54/2,489.12
  6. Step 6: Final answer
    x = 1,542.59

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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.