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Finding the Fourth Proportional to 6,791.19, 9,370.04 and 3,919.19

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Solution

The fourth proportional to 6,791.19, 9,370.04 and 3,919.19 is: 5,407.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,791.19 : 9,370.04 = 3,919.19 : x
  2. Step 2: Convert to fraction form
    6,791.19/9,370.04 = 3,919.19/x
  3. Step 3: Cross multiply
    6,791.19x = 9,370.04 × 3,919.19
  4. Step 4: Simplify right side
    6,791.19x = 36,722,947.47
  5. Step 5: Solve for x
    x = 36,722,947.47/6,791.19
  6. Step 6: Final answer
    x = 5,407.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.