Home / 7,850.25-11,769.91-3,689.48

Finding the Fourth Proportional to 7,850.25, 11,769.91 and 3,689.48

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Solution

The fourth proportional to 7,850.25, 11,769.91 and 3,689.48 is: 5,531.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,850.25 : 11,769.91 = 3,689.48 : x
  2. Step 2: Convert to fraction form
    7,850.25/11,769.91 = 3,689.48/x
  3. Step 3: Cross multiply
    7,850.25x = 11,769.91 × 3,689.48
  4. Step 4: Simplify right side
    7,850.25x = 43,424,867.75
  5. Step 5: Solve for x
    x = 43,424,867.75/7,850.25
  6. Step 6: Final answer
    x = 5,531.65

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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.