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Finding the Fourth Proportional to 3,508.62, 4,836.31 and 2,761.39

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Solution

The fourth proportional to 3,508.62, 4,836.31 and 2,761.39 is: 3,806.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508.62 : 4,836.31 = 2,761.39 : x
  2. Step 2: Convert to fraction form
    3,508.62/4,836.31 = 2,761.39/x
  3. Step 3: Cross multiply
    3,508.62x = 4,836.31 × 2,761.39
  4. Step 4: Simplify right side
    3,508.62x = 13,354,937.21
  5. Step 5: Solve for x
    x = 13,354,937.21/3,508.62
  6. Step 6: Final answer
    x = 3,806.33

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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.