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Finding the Fourth Proportional to 3,394.72, 5,092.26 and 1,085.68

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Solution

The fourth proportional to 3,394.72, 5,092.26 and 1,085.68 is: 1,628.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,394.72 : 5,092.26 = 1,085.68 : x
  2. Step 2: Convert to fraction form
    3,394.72/5,092.26 = 1,085.68/x
  3. Step 3: Cross multiply
    3,394.72x = 5,092.26 × 1,085.68
  4. Step 4: Simplify right side
    3,394.72x = 5,528,564.84
  5. Step 5: Solve for x
    x = 5,528,564.84/3,394.72
  6. Step 6: Final answer
    x = 1,628.58

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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.