Home / 2,179.15-3,268.96-1,255.75

Finding the Fourth Proportional to 2,179.15, 3,268.96 and 1,255.75

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Solution

The fourth proportional to 2,179.15, 3,268.96 and 1,255.75 is: 1,883.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.15 : 3,268.96 = 1,255.75 : x
  2. Step 2: Convert to fraction form
    2,179.15/3,268.96 = 1,255.75/x
  3. Step 3: Cross multiply
    2,179.15x = 3,268.96 × 1,255.75
  4. Step 4: Simplify right side
    2,179.15x = 4,105,003.60
  5. Step 5: Solve for x
    x = 4,105,003.60/2,179.15
  6. Step 6: Final answer
    x = 1,883.76

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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.