Home / 3,654.47-5,481.98-1,314.78

Finding the Fourth Proportional to 3,654.47, 5,481.98 and 1,314.78

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Solution

The fourth proportional to 3,654.47, 5,481.98 and 1,314.78 is: 1,972.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,654.47 : 5,481.98 = 1,314.78 : x
  2. Step 2: Convert to fraction form
    3,654.47/5,481.98 = 1,314.78/x
  3. Step 3: Cross multiply
    3,654.47x = 5,481.98 × 1,314.78
  4. Step 4: Simplify right side
    3,654.47x = 7,207,573.54
  5. Step 5: Solve for x
    x = 7,207,573.54/3,654.47
  6. Step 6: Final answer
    x = 1,972.27

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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.