Home / 7,745.32-11,618.68-2,198.72

Finding the Fourth Proportional to 7,745.32, 11,618.68 and 2,198.72

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Solution

The fourth proportional to 7,745.32, 11,618.68 and 2,198.72 is: 3,298.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.32 : 11,618.68 = 2,198.72 : x
  2. Step 2: Convert to fraction form
    7,745.32/11,618.68 = 2,198.72/x
  3. Step 3: Cross multiply
    7,745.32x = 11,618.68 × 2,198.72
  4. Step 4: Simplify right side
    7,745.32x = 25,546,224.09
  5. Step 5: Solve for x
    x = 25,546,224.09/7,745.32
  6. Step 6: Final answer
    x = 3,298.28

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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.