Home / 3,450.90-5,175.82-1,891.68

Finding the Fourth Proportional to 3,450.90, 5,175.82 and 1,891.68

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Solution

The fourth proportional to 3,450.90, 5,175.82 and 1,891.68 is: 2,837.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.90 : 5,175.82 = 1,891.68 : x
  2. Step 2: Convert to fraction form
    3,450.90/5,175.82 = 1,891.68/x
  3. Step 3: Cross multiply
    3,450.90x = 5,175.82 × 1,891.68
  4. Step 4: Simplify right side
    3,450.90x = 9,790,998.01
  5. Step 5: Solve for x
    x = 9,790,998.01/3,450.90
  6. Step 6: Final answer
    x = 2,837.23

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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.