Home / 7,763.82-11,648.46-3,380.70

Finding the Fourth Proportional to 7,763.82, 11,648.46 and 3,380.70

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Solution

The fourth proportional to 7,763.82, 11,648.46 and 3,380.70 is: 5,072.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,763.82 : 11,648.46 = 3,380.70 : x
  2. Step 2: Convert to fraction form
    7,763.82/11,648.46 = 3,380.70/x
  3. Step 3: Cross multiply
    7,763.82x = 11,648.46 × 3,380.70
  4. Step 4: Simplify right side
    7,763.82x = 39,379,948.72
  5. Step 5: Solve for x
    x = 39,379,948.72/7,763.82
  6. Step 6: Final answer
    x = 5,072.24

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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.