Home / 2,255.40-3,383.19-1,268.17

Finding the Fourth Proportional to 2,255.40, 3,383.19 and 1,268.17

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Solution

The fourth proportional to 2,255.40, 3,383.19 and 1,268.17 is: 1,902.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.40 : 3,383.19 = 1,268.17 : x
  2. Step 2: Convert to fraction form
    2,255.40/3,383.19 = 1,268.17/x
  3. Step 3: Cross multiply
    2,255.40x = 3,383.19 × 1,268.17
  4. Step 4: Simplify right side
    2,255.40x = 4,290,451.60
  5. Step 5: Solve for x
    x = 4,290,451.60/2,255.40
  6. Step 6: Final answer
    x = 1,902.30

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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.