Home / 3,977.11-5,965.12-1,512.55

Finding the Fourth Proportional to 3,977.11, 5,965.12 and 1,512.55

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Solution

The fourth proportional to 3,977.11, 5,965.12 and 1,512.55 is: 2,268.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.11 : 5,965.12 = 1,512.55 : x
  2. Step 2: Convert to fraction form
    3,977.11/5,965.12 = 1,512.55/x
  3. Step 3: Cross multiply
    3,977.11x = 5,965.12 × 1,512.55
  4. Step 4: Simplify right side
    3,977.11x = 9,022,504.87
  5. Step 5: Solve for x
    x = 9,022,504.87/3,977.11
  6. Step 6: Final answer
    x = 2,268.61

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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.