Home / 6,951.75-10,428.07-2,791.21

Finding the Fourth Proportional to 6,951.75, 10,428.07 and 2,791.21

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Solution

The fourth proportional to 6,951.75, 10,428.07 and 2,791.21 is: 4,186.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,951.75 : 10,428.07 = 2,791.21 : x
  2. Step 2: Convert to fraction form
    6,951.75/10,428.07 = 2,791.21/x
  3. Step 3: Cross multiply
    6,951.75x = 10,428.07 × 2,791.21
  4. Step 4: Simplify right side
    6,951.75x = 29,106,910.68
  5. Step 5: Solve for x
    x = 29,106,910.68/6,951.75
  6. Step 6: Final answer
    x = 4,186.99

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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.