Home / 3,486.20-5,228.61-1,729.37

Finding the Fourth Proportional to 3,486.20, 5,228.61 and 1,729.37

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Solution

The fourth proportional to 3,486.20, 5,228.61 and 1,729.37 is: 2,593.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.20 : 5,228.61 = 1,729.37 : x
  2. Step 2: Convert to fraction form
    3,486.20/5,228.61 = 1,729.37/x
  3. Step 3: Cross multiply
    3,486.20x = 5,228.61 × 1,729.37
  4. Step 4: Simplify right side
    3,486.20x = 9,042,175.13
  5. Step 5: Solve for x
    x = 9,042,175.13/3,486.20
  6. Step 6: Final answer
    x = 2,593.71

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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.