Home / 7,731.20-11,595.24-2,185.04

Finding the Fourth Proportional to 7,731.20, 11,595.24 and 2,185.04

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Solution

The fourth proportional to 7,731.20, 11,595.24 and 2,185.04 is: 3,277.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,731.20 : 11,595.24 = 2,185.04 : x
  2. Step 2: Convert to fraction form
    7,731.20/11,595.24 = 2,185.04/x
  3. Step 3: Cross multiply
    7,731.20x = 11,595.24 × 2,185.04
  4. Step 4: Simplify right side
    7,731.20x = 25,336,063.21
  5. Step 5: Solve for x
    x = 25,336,063.21/7,731.20
  6. Step 6: Final answer
    x = 3,277.12

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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.