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Finding the Fourth Proportional to 7,796.68, 11,688.09 and 2,865.17

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Solution

The fourth proportional to 7,796.68, 11,688.09 and 2,865.17 is: 4,295.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,796.68 : 11,688.09 = 2,865.17 : x
  2. Step 2: Convert to fraction form
    7,796.68/11,688.09 = 2,865.17/x
  3. Step 3: Cross multiply
    7,796.68x = 11,688.09 × 2,865.17
  4. Step 4: Simplify right side
    7,796.68x = 33,488,360.42
  5. Step 5: Solve for x
    x = 33,488,360.42/7,796.68
  6. Step 6: Final answer
    x = 4,295.21

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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.