Home / 7,951.89-11,926.49-2,109.09

Finding the Fourth Proportional to 7,951.89, 11,926.49 and 2,109.09

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Solution

The fourth proportional to 7,951.89, 11,926.49 and 2,109.09 is: 3,163.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.89 : 11,926.49 = 2,109.09 : x
  2. Step 2: Convert to fraction form
    7,951.89/11,926.49 = 2,109.09/x
  3. Step 3: Cross multiply
    7,951.89x = 11,926.49 × 2,109.09
  4. Step 4: Simplify right side
    7,951.89x = 25,154,040.79
  5. Step 5: Solve for x
    x = 25,154,040.79/7,951.89
  6. Step 6: Final answer
    x = 3,163.28

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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.