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Finding the Fourth Proportional to 3,550.76, 5,324.54 and 1,085.88

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Solution

The fourth proportional to 3,550.76, 5,324.54 and 1,085.88 is: 1,628.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,550.76 : 5,324.54 = 1,085.88 : x
  2. Step 2: Convert to fraction form
    3,550.76/5,324.54 = 1,085.88/x
  3. Step 3: Cross multiply
    3,550.76x = 5,324.54 × 1,085.88
  4. Step 4: Simplify right side
    3,550.76x = 5,781,811.50
  5. Step 5: Solve for x
    x = 5,781,811.50/3,550.76
  6. Step 6: Final answer
    x = 1,628.33

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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.