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Finding the Fourth Proportional to 1,097.57, 1,646.07 and 481.16

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Solution

The fourth proportional to 1,097.57, 1,646.07 and 481.16 is: 721.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097.57 : 1,646.07 = 481.16 : x
  2. Step 2: Convert to fraction form
    1,097.57/1,646.07 = 481.16/x
  3. Step 3: Cross multiply
    1,097.57x = 1,646.07 × 481.16
  4. Step 4: Simplify right side
    1,097.57x = 792,014.81
  5. Step 5: Solve for x
    x = 792,014.81/1,097.57
  6. Step 6: Final answer
    x = 721.61

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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.