Home / 3,456.20-4,757.88-3,123.60

Finding the Fourth Proportional to 3,456.20, 4,757.88 and 3,123.60

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Solution

The fourth proportional to 3,456.20, 4,757.88 and 3,123.60 is: 4,300.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.20 : 4,757.88 = 3,123.60 : x
  2. Step 2: Convert to fraction form
    3,456.20/4,757.88 = 3,123.60/x
  3. Step 3: Cross multiply
    3,456.20x = 4,757.88 × 3,123.60
  4. Step 4: Simplify right side
    3,456.20x = 14,861,713.97
  5. Step 5: Solve for x
    x = 14,861,713.97/3,456.20
  6. Step 6: Final answer
    x = 4,300.02

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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.