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Finding the Fourth Proportional to 2,195.52, 3,292.29 and 808.62

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Solution

The fourth proportional to 2,195.52, 3,292.29 and 808.62 is: 1,212.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.52 : 3,292.29 = 808.62 : x
  2. Step 2: Convert to fraction form
    2,195.52/3,292.29 = 808.62/x
  3. Step 3: Cross multiply
    2,195.52x = 3,292.29 × 808.62
  4. Step 4: Simplify right side
    2,195.52x = 2,662,211.54
  5. Step 5: Solve for x
    x = 2,662,211.54/2,195.52
  6. Step 6: Final answer
    x = 1,212.57

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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.