Home / 6,120.20-9,180.30-4,046.60

Finding the Fourth Proportional to 6,120.20, 9,180.30 and 4,046.60

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Solution

The fourth proportional to 6,120.20, 9,180.30 and 4,046.60 is: 6,069.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.20 : 9,180.30 = 4,046.60 : x
  2. Step 2: Convert to fraction form
    6,120.20/9,180.30 = 4,046.60/x
  3. Step 3: Cross multiply
    6,120.20x = 9,180.30 × 4,046.60
  4. Step 4: Simplify right side
    6,120.20x = 37,149,001.98
  5. Step 5: Solve for x
    x = 37,149,001.98/6,120.20
  6. Step 6: Final answer
    x = 6,069.90

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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.