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Finding the Fourth Proportional to 1,383.44, 2,071.92 and 1,092.92

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Solution

The fourth proportional to 1,383.44, 2,071.92 and 1,092.92 is: 1,636.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383.44 : 2,071.92 = 1,092.92 : x
  2. Step 2: Convert to fraction form
    1,383.44/2,071.92 = 1,092.92/x
  3. Step 3: Cross multiply
    1,383.44x = 2,071.92 × 1,092.92
  4. Step 4: Simplify right side
    1,383.44x = 2,264,442.81
  5. Step 5: Solve for x
    x = 2,264,442.81/1,383.44
  6. Step 6: Final answer
    x = 1,636.82

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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.