Home / 6,821.69-10,232.22-2,140.97

Finding the Fourth Proportional to 6,821.69, 10,232.22 and 2,140.97

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Solution

The fourth proportional to 6,821.69, 10,232.22 and 2,140.97 is: 3,211.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.69 : 10,232.22 = 2,140.97 : x
  2. Step 2: Convert to fraction form
    6,821.69/10,232.22 = 2,140.97/x
  3. Step 3: Cross multiply
    6,821.69x = 10,232.22 × 2,140.97
  4. Step 4: Simplify right side
    6,821.69x = 21,906,876.05
  5. Step 5: Solve for x
    x = 21,906,876.05/6,821.69
  6. Step 6: Final answer
    x = 3,211.36

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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.