Home / 2,268.15-3,398.49-2,181.66

Finding the Fourth Proportional to 2,268.15, 3,398.49 and 2,181.66

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Solution

The fourth proportional to 2,268.15, 3,398.49 and 2,181.66 is: 3,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.15 : 3,398.49 = 2,181.66 : x
  2. Step 2: Convert to fraction form
    2,268.15/3,398.49 = 2,181.66/x
  3. Step 3: Cross multiply
    2,268.15x = 3,398.49 × 2,181.66
  4. Step 4: Simplify right side
    2,268.15x = 7,414,349.69
  5. Step 5: Solve for x
    x = 7,414,349.69/2,268.15
  6. Step 6: Final answer
    x = 3,268.90

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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.