Home / 7,767.80-11,652.09-2,221.97

Finding the Fourth Proportional to 7,767.80, 11,652.09 and 2,221.97

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Solution

The fourth proportional to 7,767.80, 11,652.09 and 2,221.97 is: 3,333.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.80 : 11,652.09 = 2,221.97 : x
  2. Step 2: Convert to fraction form
    7,767.80/11,652.09 = 2,221.97/x
  3. Step 3: Cross multiply
    7,767.80x = 11,652.09 × 2,221.97
  4. Step 4: Simplify right side
    7,767.80x = 25,890,527.82
  5. Step 5: Solve for x
    x = 25,890,527.82/7,767.80
  6. Step 6: Final answer
    x = 3,333.06

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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.