Home / 7,951.26-11,927.43-2,107.68

Finding the Fourth Proportional to 7,951.26, 11,927.43 and 2,107.68

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Solution

The fourth proportional to 7,951.26, 11,927.43 and 2,107.68 is: 3,161.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.26 : 11,927.43 = 2,107.68 : x
  2. Step 2: Convert to fraction form
    7,951.26/11,927.43 = 2,107.68/x
  3. Step 3: Cross multiply
    7,951.26x = 11,927.43 × 2,107.68
  4. Step 4: Simplify right side
    7,951.26x = 25,139,205.66
  5. Step 5: Solve for x
    x = 25,139,205.66/7,951.26
  6. Step 6: Final answer
    x = 3,161.66

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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.