Home / 7,769.25-11,645.74-3,385.53

Finding the Fourth Proportional to 7,769.25, 11,645.74 and 3,385.53

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Solution

The fourth proportional to 7,769.25, 11,645.74 and 3,385.53 is: 5,074.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.25 : 11,645.74 = 3,385.53 : x
  2. Step 2: Convert to fraction form
    7,769.25/11,645.74 = 3,385.53/x
  3. Step 3: Cross multiply
    7,769.25x = 11,645.74 × 3,385.53
  4. Step 4: Simplify right side
    7,769.25x = 39,427,002.14
  5. Step 5: Solve for x
    x = 39,427,002.14/7,769.25
  6. Step 6: Final answer
    x = 5,074.75

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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.