Home / 7,769.80-11,655.06-2,223.96

Finding the Fourth Proportional to 7,769.80, 11,655.06 and 2,223.96

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Solution

The fourth proportional to 7,769.80, 11,655.06 and 2,223.96 is: 3,336.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.80 : 11,655.06 = 2,223.96 : x
  2. Step 2: Convert to fraction form
    7,769.80/11,655.06 = 2,223.96/x
  3. Step 3: Cross multiply
    7,769.80x = 11,655.06 × 2,223.96
  4. Step 4: Simplify right side
    7,769.80x = 25,920,387.24
  5. Step 5: Solve for x
    x = 25,920,387.24/7,769.80
  6. Step 6: Final answer
    x = 3,336.04

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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.