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Finding the Fourth Proportional to 6,791.11, 10,191.18 and 2,791.77

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Solution

The fourth proportional to 6,791.11, 10,191.18 and 2,791.77 is: 4,189.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,791.11 : 10,191.18 = 2,791.77 : x
  2. Step 2: Convert to fraction form
    6,791.11/10,191.18 = 2,791.77/x
  3. Step 3: Cross multiply
    6,791.11x = 10,191.18 × 2,791.77
  4. Step 4: Simplify right side
    6,791.11x = 28,451,430.59
  5. Step 5: Solve for x
    x = 28,451,430.59/6,791.11
  6. Step 6: Final answer
    x = 4,189.51

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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.