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Finding the Fourth Proportional to 3,481.61, 4,799.17 and 2,638.94

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Solution

The fourth proportional to 3,481.61, 4,799.17 and 2,638.94 is: 3,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.61 : 4,799.17 = 2,638.94 : x
  2. Step 2: Convert to fraction form
    3,481.61/4,799.17 = 2,638.94/x
  3. Step 3: Cross multiply
    3,481.61x = 4,799.17 × 2,638.94
  4. Step 4: Simplify right side
    3,481.61x = 12,664,721.68
  5. Step 5: Solve for x
    x = 12,664,721.68/3,481.61
  6. Step 6: Final answer
    x = 3,637.60

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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.