Home / 3,286.36-4,531.02-2,105.44

Finding the Fourth Proportional to 3,286.36, 4,531.02 and 2,105.44

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Solution

The fourth proportional to 3,286.36, 4,531.02 and 2,105.44 is: 2,902.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.36 : 4,531.02 = 2,105.44 : x
  2. Step 2: Convert to fraction form
    3,286.36/4,531.02 = 2,105.44/x
  3. Step 3: Cross multiply
    3,286.36x = 4,531.02 × 2,105.44
  4. Step 4: Simplify right side
    3,286.36x = 9,539,790.75
  5. Step 5: Solve for x
    x = 9,539,790.75/3,286.36
  6. Step 6: Final answer
    x = 2,902.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.