Home / 2,198.60-3,299.11-1,225.25

Finding the Fourth Proportional to 2,198.60, 3,299.11 and 1,225.25

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Solution

The fourth proportional to 2,198.60, 3,299.11 and 1,225.25 is: 1,838.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.60 : 3,299.11 = 1,225.25 : x
  2. Step 2: Convert to fraction form
    2,198.60/3,299.11 = 1,225.25/x
  3. Step 3: Cross multiply
    2,198.60x = 3,299.11 × 1,225.25
  4. Step 4: Simplify right side
    2,198.60x = 4,042,214.97
  5. Step 5: Solve for x
    x = 4,042,214.97/2,198.60
  6. Step 6: Final answer
    x = 1,838.54

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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.