Home / 3,161.33-4,360.27-2,321.78

Finding the Fourth Proportional to 3,161.33, 4,360.27 and 2,321.78

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Solution

The fourth proportional to 3,161.33, 4,360.27 and 2,321.78 is: 3,202.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.33 : 4,360.27 = 2,321.78 : x
  2. Step 2: Convert to fraction form
    3,161.33/4,360.27 = 2,321.78/x
  3. Step 3: Cross multiply
    3,161.33x = 4,360.27 × 2,321.78
  4. Step 4: Simplify right side
    3,161.33x = 10,123,587.68
  5. Step 5: Solve for x
    x = 10,123,587.68/3,161.33
  6. Step 6: Final answer
    x = 3,202.32

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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.