Home / 1,092.11-1,638.14-270.37

Finding the Fourth Proportional to 1,092.11, 1,638.14 and 270.37

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Solution

The fourth proportional to 1,092.11, 1,638.14 and 270.37 is: 405.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092.11 : 1,638.14 = 270.37 : x
  2. Step 2: Convert to fraction form
    1,092.11/1,638.14 = 270.37/x
  3. Step 3: Cross multiply
    1,092.11x = 1,638.14 × 270.37
  4. Step 4: Simplify right side
    1,092.11x = 442,894.37
  5. Step 5: Solve for x
    x = 442,894.37/1,092.11
  6. Step 6: Final answer
    x = 405.54

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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.