Home / 7,745.65-11,618.92-2,198.56

Finding the Fourth Proportional to 7,745.65, 11,618.92 and 2,198.56

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Solution

The fourth proportional to 7,745.65, 11,618.92 and 2,198.56 is: 3,297.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.65 : 11,618.92 = 2,198.56 : x
  2. Step 2: Convert to fraction form
    7,745.65/11,618.92 = 2,198.56/x
  3. Step 3: Cross multiply
    7,745.65x = 11,618.92 × 2,198.56
  4. Step 4: Simplify right side
    7,745.65x = 25,544,892.76
  5. Step 5: Solve for x
    x = 25,544,892.76/7,745.65
  6. Step 6: Final answer
    x = 3,297.97

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1.5x scale

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.