Home / 3,311.20-4,960.56-2,766.88

Finding the Fourth Proportional to 3,311.20, 4,960.56 and 2,766.88

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Solution

The fourth proportional to 3,311.20, 4,960.56 and 2,766.88 is: 4,145.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.20 : 4,960.56 = 2,766.88 : x
  2. Step 2: Convert to fraction form
    3,311.20/4,960.56 = 2,766.88/x
  3. Step 3: Cross multiply
    3,311.20x = 4,960.56 × 2,766.88
  4. Step 4: Simplify right side
    3,311.20x = 13,725,274.25
  5. Step 5: Solve for x
    x = 13,725,274.25/3,311.20
  6. Step 6: Final answer
    x = 4,145.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.