Home / 3,380.60-4,680.78-3,294.20

Finding the Fourth Proportional to 3,380.60, 4,680.78 and 3,294.20

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Solution

The fourth proportional to 3,380.60, 4,680.78 and 3,294.20 is: 4,561.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.60 : 4,680.78 = 3,294.20 : x
  2. Step 2: Convert to fraction form
    3,380.60/4,680.78 = 3,294.20/x
  3. Step 3: Cross multiply
    3,380.60x = 4,680.78 × 3,294.20
  4. Step 4: Simplify right side
    3,380.60x = 15,419,425.48
  5. Step 5: Solve for x
    x = 15,419,425.48/3,380.60
  6. Step 6: Final answer
    x = 4,561.15

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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.