Home / 5,691.14-8,538.41-2,919.77

Finding the Fourth Proportional to 5,691.14, 8,538.41 and 2,919.77

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Solution

The fourth proportional to 5,691.14, 8,538.41 and 2,919.77 is: 4,380.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.14 : 8,538.41 = 2,919.77 : x
  2. Step 2: Convert to fraction form
    5,691.14/8,538.41 = 2,919.77/x
  3. Step 3: Cross multiply
    5,691.14x = 8,538.41 × 2,919.77
  4. Step 4: Simplify right side
    5,691.14x = 24,930,178.77
  5. Step 5: Solve for x
    x = 24,930,178.77/5,691.14
  6. Step 6: Final answer
    x = 4,380.52

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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.