Home / 2,195.10-3,293.25-1,221.88

Finding the Fourth Proportional to 2,195.10, 3,293.25 and 1,221.88

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Solution

The fourth proportional to 2,195.10, 3,293.25 and 1,221.88 is: 1,833.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.10 : 3,293.25 = 1,221.88 : x
  2. Step 2: Convert to fraction form
    2,195.10/3,293.25 = 1,221.88/x
  3. Step 3: Cross multiply
    2,195.10x = 3,293.25 × 1,221.88
  4. Step 4: Simplify right side
    2,195.10x = 4,023,956.31
  5. Step 5: Solve for x
    x = 4,023,956.31/2,195.10
  6. Step 6: Final answer
    x = 1,833.15

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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.