Home / 7,791.26-11,679.59-2,859.57

Finding the Fourth Proportional to 7,791.26, 11,679.59 and 2,859.57

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Solution

The fourth proportional to 7,791.26, 11,679.59 and 2,859.57 is: 4,286.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.26 : 11,679.59 = 2,859.57 : x
  2. Step 2: Convert to fraction form
    7,791.26/11,679.59 = 2,859.57/x
  3. Step 3: Cross multiply
    7,791.26x = 11,679.59 × 2,859.57
  4. Step 4: Simplify right side
    7,791.26x = 33,398,612.33
  5. Step 5: Solve for x
    x = 33,398,612.33/7,791.26
  6. Step 6: Final answer
    x = 4,286.68

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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.