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Finding the Fourth Proportional to 1,035.29, 1,553.36 and 548.36

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Solution

The fourth proportional to 1,035.29, 1,553.36 and 548.36 is: 822.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035.29 : 1,553.36 = 548.36 : x
  2. Step 2: Convert to fraction form
    1,035.29/1,553.36 = 548.36/x
  3. Step 3: Cross multiply
    1,035.29x = 1,553.36 × 548.36
  4. Step 4: Simplify right side
    1,035.29x = 851,789.98
  5. Step 5: Solve for x
    x = 851,789.98/1,035.29
  6. Step 6: Final answer
    x = 822.76

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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.