Home / 3,255.90-4,487.11-2,311.73

Finding the Fourth Proportional to 3,255.90, 4,487.11 and 2,311.73

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Solution

The fourth proportional to 3,255.90, 4,487.11 and 2,311.73 is: 3,185.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.90 : 4,487.11 = 2,311.73 : x
  2. Step 2: Convert to fraction form
    3,255.90/4,487.11 = 2,311.73/x
  3. Step 3: Cross multiply
    3,255.90x = 4,487.11 × 2,311.73
  4. Step 4: Simplify right side
    3,255.90x = 10,372,972.35
  5. Step 5: Solve for x
    x = 10,372,972.35/3,255.90
  6. Step 6: Final answer
    x = 3,185.90

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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.