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Finding the Fourth Proportional to 1,097.10, 1,644.60 and 548.73

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Solution

The fourth proportional to 1,097.10, 1,644.60 and 548.73 is: 822.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097.10 : 1,644.60 = 548.73 : x
  2. Step 2: Convert to fraction form
    1,097.10/1,644.60 = 548.73/x
  3. Step 3: Cross multiply
    1,097.10x = 1,644.60 × 548.73
  4. Step 4: Simplify right side
    1,097.10x = 902,441.36
  5. Step 5: Solve for x
    x = 902,441.36/1,097.10
  6. Step 6: Final answer
    x = 822.57

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Double scale
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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.