Home / 6,821.45-10,238.66-3,536.90

Finding the Fourth Proportional to 6,821.45, 10,238.66 and 3,536.90

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Solution

The fourth proportional to 6,821.45, 10,238.66 and 3,536.90 is: 5,308.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.45 : 10,238.66 = 3,536.90 : x
  2. Step 2: Convert to fraction form
    6,821.45/10,238.66 = 3,536.90/x
  3. Step 3: Cross multiply
    6,821.45x = 10,238.66 × 3,536.90
  4. Step 4: Simplify right side
    6,821.45x = 36,213,116.55
  5. Step 5: Solve for x
    x = 36,213,116.55/6,821.45
  6. Step 6: Final answer
    x = 5,308.71

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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.