Home / 5,731.20-7,906.73-3,340.80

Finding the Fourth Proportional to 5,731.20, 7,906.73 and 3,340.80

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Solution

The fourth proportional to 5,731.20, 7,906.73 and 3,340.80 is: 4,608.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,731.20 : 7,906.73 = 3,340.80 : x
  2. Step 2: Convert to fraction form
    5,731.20/7,906.73 = 3,340.80/x
  3. Step 3: Cross multiply
    5,731.20x = 7,906.73 × 3,340.80
  4. Step 4: Simplify right side
    5,731.20x = 26,414,786.88
  5. Step 5: Solve for x
    x = 26,414,786.88/5,731.20
  6. Step 6: Final answer
    x = 4,608.95

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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.