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Finding the Fourth Proportional to 1,097.03, 1,645.52 and 548.81

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Solution

The fourth proportional to 1,097.03, 1,645.52 and 548.81 is: 823.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097.03 : 1,645.52 = 548.81 : x
  2. Step 2: Convert to fraction form
    1,097.03/1,645.52 = 548.81/x
  3. Step 3: Cross multiply
    1,097.03x = 1,645.52 × 548.81
  4. Step 4: Simplify right side
    1,097.03x = 903,073.03
  5. Step 5: Solve for x
    x = 903,073.03/1,097.03
  6. Step 6: Final answer
    x = 823.20

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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.