Home / 3,380.85-5,063.67-2,720.43

Finding the Fourth Proportional to 3,380.85, 5,063.67 and 2,720.43

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Solution

The fourth proportional to 3,380.85, 5,063.67 and 2,720.43 is: 4,074.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.85 : 5,063.67 = 2,720.43 : x
  2. Step 2: Convert to fraction form
    3,380.85/5,063.67 = 2,720.43/x
  3. Step 3: Cross multiply
    3,380.85x = 5,063.67 × 2,720.43
  4. Step 4: Simplify right side
    3,380.85x = 13,775,359.78
  5. Step 5: Solve for x
    x = 13,775,359.78/3,380.85
  6. Step 6: Final answer
    x = 4,074.53

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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.