Home / 6,821.26-10,235.81-2,872.21

Finding the Fourth Proportional to 6,821.26, 10,235.81 and 2,872.21

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Solution

The fourth proportional to 6,821.26, 10,235.81 and 2,872.21 is: 4,309.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.26 : 10,235.81 = 2,872.21 : x
  2. Step 2: Convert to fraction form
    6,821.26/10,235.81 = 2,872.21/x
  3. Step 3: Cross multiply
    6,821.26x = 10,235.81 × 2,872.21
  4. Step 4: Simplify right side
    6,821.26x = 29,399,344.66
  5. Step 5: Solve for x
    x = 29,399,344.66/6,821.26
  6. Step 6: Final answer
    x = 4,309.96

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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.