Home / 3,270.28-4,512.98-1,778.18

Finding the Fourth Proportional to 3,270.28, 4,512.98 and 1,778.18

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Solution

The fourth proportional to 3,270.28, 4,512.98 and 1,778.18 is: 2,453.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.28 : 4,512.98 = 1,778.18 : x
  2. Step 2: Convert to fraction form
    3,270.28/4,512.98 = 1,778.18/x
  3. Step 3: Cross multiply
    3,270.28x = 4,512.98 × 1,778.18
  4. Step 4: Simplify right side
    3,270.28x = 8,024,890.78
  5. Step 5: Solve for x
    x = 8,024,890.78/3,270.28
  6. Step 6: Final answer
    x = 2,453.88

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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.