Home / 3,759.85-5,188.68-2,081.29

Finding the Fourth Proportional to 3,759.85, 5,188.68 and 2,081.29

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Solution

The fourth proportional to 3,759.85, 5,188.68 and 2,081.29 is: 2,872.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.85 : 5,188.68 = 2,081.29 : x
  2. Step 2: Convert to fraction form
    3,759.85/5,188.68 = 2,081.29/x
  3. Step 3: Cross multiply
    3,759.85x = 5,188.68 × 2,081.29
  4. Step 4: Simplify right side
    3,759.85x = 10,799,121.85
  5. Step 5: Solve for x
    x = 10,799,121.85/3,759.85
  6. Step 6: Final answer
    x = 2,872.23

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1.5x scale

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.