Home / 6,138.20-9,207.30-3,680.60

Finding the Fourth Proportional to 6,138.20, 9,207.30 and 3,680.60

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Solution

The fourth proportional to 6,138.20, 9,207.30 and 3,680.60 is: 5,520.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,138.20 : 9,207.30 = 3,680.60 : x
  2. Step 2: Convert to fraction form
    6,138.20/9,207.30 = 3,680.60/x
  3. Step 3: Cross multiply
    6,138.20x = 9,207.30 × 3,680.60
  4. Step 4: Simplify right side
    6,138.20x = 33,888,388.38
  5. Step 5: Solve for x
    x = 33,888,388.38/6,138.20
  6. Step 6: Final answer
    x = 5,520.90

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1.5x scale

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.