Home / 5,691.21-8,536.17-1,992.75

Finding the Fourth Proportional to 5,691.21, 8,536.17 and 1,992.75

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Solution

The fourth proportional to 5,691.21, 8,536.17 and 1,992.75 is: 2,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.21 : 8,536.17 = 1,992.75 : x
  2. Step 2: Convert to fraction form
    5,691.21/8,536.17 = 1,992.75/x
  3. Step 3: Cross multiply
    5,691.21x = 8,536.17 × 1,992.75
  4. Step 4: Simplify right side
    5,691.21x = 17,010,452.77
  5. Step 5: Solve for x
    x = 17,010,452.77/5,691.21
  6. Step 6: Final answer
    x = 2,988.90

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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.