Home / 2,311.96-3,447.92-2,201.80

Finding the Fourth Proportional to 2,311.96, 3,447.92 and 2,201.80

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Solution

The fourth proportional to 2,311.96, 3,447.92 and 2,201.80 is: 3,283.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.96 : 3,447.92 = 2,201.80 : x
  2. Step 2: Convert to fraction form
    2,311.96/3,447.92 = 2,201.80/x
  3. Step 3: Cross multiply
    2,311.96x = 3,447.92 × 2,201.80
  4. Step 4: Simplify right side
    2,311.96x = 7,591,630.26
  5. Step 5: Solve for x
    x = 7,591,630.26/2,311.96
  6. Step 6: Final answer
    x = 3,283.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.