Home / 2,168.26-3,249.96-868.21

Finding the Fourth Proportional to 2,168.26, 3,249.96 and 868.21

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Solution

The fourth proportional to 2,168.26, 3,249.96 and 868.21 is: 1,301.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168.26 : 3,249.96 = 868.21 : x
  2. Step 2: Convert to fraction form
    2,168.26/3,249.96 = 868.21/x
  3. Step 3: Cross multiply
    2,168.26x = 3,249.96 × 868.21
  4. Step 4: Simplify right side
    2,168.26x = 2,821,647.77
  5. Step 5: Solve for x
    x = 2,821,647.77/2,168.26
  6. Step 6: Final answer
    x = 1,301.34

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1.5x scale

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.