Home / 5,769.50-7,961.95-3,380.88

Finding the Fourth Proportional to 5,769.50, 7,961.95 and 3,380.88

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Solution

The fourth proportional to 5,769.50, 7,961.95 and 3,380.88 is: 4,665.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,769.50 : 7,961.95 = 3,380.88 : x
  2. Step 2: Convert to fraction form
    5,769.50/7,961.95 = 3,380.88/x
  3. Step 3: Cross multiply
    5,769.50x = 7,961.95 × 3,380.88
  4. Step 4: Simplify right side
    5,769.50x = 26,918,380.61
  5. Step 5: Solve for x
    x = 26,918,380.61/5,769.50
  6. Step 6: Final answer
    x = 4,665.63

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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.