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Finding the Fourth Proportional to 3,290.76, 4,936.62 and 1,098.96

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Solution

The fourth proportional to 3,290.76, 4,936.62 and 1,098.96 is: 1,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.76 : 4,936.62 = 1,098.96 : x
  2. Step 2: Convert to fraction form
    3,290.76/4,936.62 = 1,098.96/x
  3. Step 3: Cross multiply
    3,290.76x = 4,936.62 × 1,098.96
  4. Step 4: Simplify right side
    3,290.76x = 5,425,147.92
  5. Step 5: Solve for x
    x = 5,425,147.92/3,290.76
  6. Step 6: Final answer
    x = 1,648.60

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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.