Home / 3,161.54-4,361.55-1,982.38

Finding the Fourth Proportional to 3,161.54, 4,361.55 and 1,982.38

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Solution

The fourth proportional to 3,161.54, 4,361.55 and 1,982.38 is: 2,734.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.54 : 4,361.55 = 1,982.38 : x
  2. Step 2: Convert to fraction form
    3,161.54/4,361.55 = 1,982.38/x
  3. Step 3: Cross multiply
    3,161.54x = 4,361.55 × 1,982.38
  4. Step 4: Simplify right side
    3,161.54x = 8,646,249.49
  5. Step 5: Solve for x
    x = 8,646,249.49/3,161.54
  6. Step 6: Final answer
    x = 2,734.82

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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.