Home / 6,777.20-9,351.72-3,792.80

Finding the Fourth Proportional to 6,777.20, 9,351.72 and 3,792.80

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Solution

The fourth proportional to 6,777.20, 9,351.72 and 3,792.80 is: 5,233.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,777.20 : 9,351.72 = 3,792.80 : x
  2. Step 2: Convert to fraction form
    6,777.20/9,351.72 = 3,792.80/x
  3. Step 3: Cross multiply
    6,777.20x = 9,351.72 × 3,792.80
  4. Step 4: Simplify right side
    6,777.20x = 35,469,203.62
  5. Step 5: Solve for x
    x = 35,469,203.62/6,777.20
  6. Step 6: Final answer
    x = 5,233.61

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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.