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Finding the Fourth Proportional to 3,372.78, 4,654.92 and 1,975.56

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Solution

The fourth proportional to 3,372.78, 4,654.92 and 1,975.56 is: 2,726.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,372.78 : 4,654.92 = 1,975.56 : x
  2. Step 2: Convert to fraction form
    3,372.78/4,654.92 = 1,975.56/x
  3. Step 3: Cross multiply
    3,372.78x = 4,654.92 × 1,975.56
  4. Step 4: Simplify right side
    3,372.78x = 9,196,073.76
  5. Step 5: Solve for x
    x = 9,196,073.76/3,372.78
  6. Step 6: Final answer
    x = 2,726.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.