Home / 2,489.33-3,748.82-2,168.57

Finding the Fourth Proportional to 2,489.33, 3,748.82 and 2,168.57

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Solution

The fourth proportional to 2,489.33, 3,748.82 and 2,168.57 is: 3,265.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.33 : 3,748.82 = 2,168.57 : x
  2. Step 2: Convert to fraction form
    2,489.33/3,748.82 = 2,168.57/x
  3. Step 3: Cross multiply
    2,489.33x = 3,748.82 × 2,168.57
  4. Step 4: Simplify right side
    2,489.33x = 8,129,577.12
  5. Step 5: Solve for x
    x = 8,129,577.12/2,489.33
  6. Step 6: Final answer
    x = 3,265.77

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.