Home / 7,769.92-11,655.70-3,328.04

Finding the Fourth Proportional to 7,769.92, 11,655.70 and 3,328.04

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Solution

The fourth proportional to 7,769.92, 11,655.70 and 3,328.04 is: 4,992.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.92 : 11,655.70 = 3,328.04 : x
  2. Step 2: Convert to fraction form
    7,769.92/11,655.70 = 3,328.04/x
  3. Step 3: Cross multiply
    7,769.92x = 11,655.70 × 3,328.04
  4. Step 4: Simplify right side
    7,769.92x = 38,790,635.83
  5. Step 5: Solve for x
    x = 38,790,635.83/7,769.92
  6. Step 6: Final answer
    x = 4,992.41

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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.