Home / 6,722.20-10,074.78-2,822.08

Finding the Fourth Proportional to 6,722.20, 10,074.78 and 2,822.08

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Solution

The fourth proportional to 6,722.20, 10,074.78 and 2,822.08 is: 4,229.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,722.20 : 10,074.78 = 2,822.08 : x
  2. Step 2: Convert to fraction form
    6,722.20/10,074.78 = 2,822.08/x
  3. Step 3: Cross multiply
    6,722.20x = 10,074.78 × 2,822.08
  4. Step 4: Simplify right side
    6,722.20x = 28,431,835.14
  5. Step 5: Solve for x
    x = 28,431,835.14/6,722.20
  6. Step 6: Final answer
    x = 4,229.54

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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.