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Finding the Fourth Proportional to 3,694.80, 5,542.20 and 1,097.76

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Solution

The fourth proportional to 3,694.80, 5,542.20 and 1,097.76 is: 1,646.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,694.80 : 5,542.20 = 1,097.76 : x
  2. Step 2: Convert to fraction form
    3,694.80/5,542.20 = 1,097.76/x
  3. Step 3: Cross multiply
    3,694.80x = 5,542.20 × 1,097.76
  4. Step 4: Simplify right side
    3,694.80x = 6,084,005.47
  5. Step 5: Solve for x
    x = 6,084,005.47/3,694.80
  6. Step 6: Final answer
    x = 1,646.64

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.