Home / 6,522.21-9,781.26-2,138.64

Finding the Fourth Proportional to 6,522.21, 9,781.26 and 2,138.64

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Solution

The fourth proportional to 6,522.21, 9,781.26 and 2,138.64 is: 3,207.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,522.21 : 9,781.26 = 2,138.64 : x
  2. Step 2: Convert to fraction form
    6,522.21/9,781.26 = 2,138.64/x
  3. Step 3: Cross multiply
    6,522.21x = 9,781.26 × 2,138.64
  4. Step 4: Simplify right side
    6,522.21x = 20,918,593.89
  5. Step 5: Solve for x
    x = 20,918,593.89/6,522.21
  6. Step 6: Final answer
    x = 3,207.29

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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.