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Finding the Fourth Proportional to 7,852.62, 11,778.69 and 2,380.62

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Solution

The fourth proportional to 7,852.62, 11,778.69 and 2,380.62 is: 3,570.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,852.62 : 11,778.69 = 2,380.62 : x
  2. Step 2: Convert to fraction form
    7,852.62/11,778.69 = 2,380.62/x
  3. Step 3: Cross multiply
    7,852.62x = 11,778.69 × 2,380.62
  4. Step 4: Simplify right side
    7,852.62x = 28,040,584.99
  5. Step 5: Solve for x
    x = 28,040,584.99/7,852.62
  6. Step 6: Final answer
    x = 3,570.86

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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.