Home / 7,766.82-11,650.58-2,220.96

Finding the Fourth Proportional to 7,766.82, 11,650.58 and 2,220.96

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Solution

The fourth proportional to 7,766.82, 11,650.58 and 2,220.96 is: 3,331.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.82 : 11,650.58 = 2,220.96 : x
  2. Step 2: Convert to fraction form
    7,766.82/11,650.58 = 2,220.96/x
  3. Step 3: Cross multiply
    7,766.82x = 11,650.58 × 2,220.96
  4. Step 4: Simplify right side
    7,766.82x = 25,875,472.16
  5. Step 5: Solve for x
    x = 25,875,472.16/7,766.82
  6. Step 6: Final answer
    x = 3,331.54

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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.