Home / 7,691.21-11,536.33-2,145.34

Finding the Fourth Proportional to 7,691.21, 11,536.33 and 2,145.34

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Solution

The fourth proportional to 7,691.21, 11,536.33 and 2,145.34 is: 3,217.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,691.21 : 11,536.33 = 2,145.34 : x
  2. Step 2: Convert to fraction form
    7,691.21/11,536.33 = 2,145.34/x
  3. Step 3: Cross multiply
    7,691.21x = 11,536.33 × 2,145.34
  4. Step 4: Simplify right side
    7,691.21x = 24,749,350.20
  5. Step 5: Solve for x
    x = 24,749,350.20/7,691.21
  6. Step 6: Final answer
    x = 3,217.87

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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.