Home / 6,816.45-10,231.20-3,531.90

Finding the Fourth Proportional to 6,816.45, 10,231.20 and 3,531.90

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Solution

The fourth proportional to 6,816.45, 10,231.20 and 3,531.90 is: 5,301.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,816.45 : 10,231.20 = 3,531.90 : x
  2. Step 2: Convert to fraction form
    6,816.45/10,231.20 = 3,531.90/x
  3. Step 3: Cross multiply
    6,816.45x = 10,231.20 × 3,531.90
  4. Step 4: Simplify right side
    6,816.45x = 36,135,575.28
  5. Step 5: Solve for x
    x = 36,135,575.28/6,816.45
  6. Step 6: Final answer
    x = 5,301.23

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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.