Home / 3,072.20-4,608.30-2,793.80

Finding the Fourth Proportional to 3,072.20, 4,608.30 and 2,793.80

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Solution

The fourth proportional to 3,072.20, 4,608.30 and 2,793.80 is: 4,190.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.20 : 4,608.30 = 2,793.80 : x
  2. Step 2: Convert to fraction form
    3,072.20/4,608.30 = 2,793.80/x
  3. Step 3: Cross multiply
    3,072.20x = 4,608.30 × 2,793.80
  4. Step 4: Simplify right side
    3,072.20x = 12,874,668.54
  5. Step 5: Solve for x
    x = 12,874,668.54/3,072.20
  6. Step 6: Final answer
    x = 4,190.70

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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.