Home / 7,691.25-11,536.96-2,145.01

Finding the Fourth Proportional to 7,691.25, 11,536.96 and 2,145.01

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Solution

The fourth proportional to 7,691.25, 11,536.96 and 2,145.01 is: 3,217.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,691.25 : 11,536.96 = 2,145.01 : x
  2. Step 2: Convert to fraction form
    7,691.25/11,536.96 = 2,145.01/x
  3. Step 3: Cross multiply
    7,691.25x = 11,536.96 × 2,145.01
  4. Step 4: Simplify right side
    7,691.25x = 24,746,847.54
  5. Step 5: Solve for x
    x = 24,746,847.54/7,691.25
  6. Step 6: Final answer
    x = 3,217.53

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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.