Home / 6,811.92-10,219.32-2,198.16

Finding the Fourth Proportional to 6,811.92, 10,219.32 and 2,198.16

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Solution

The fourth proportional to 6,811.92, 10,219.32 and 2,198.16 is: 3,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.92 : 10,219.32 = 2,198.16 : x
  2. Step 2: Convert to fraction form
    6,811.92/10,219.32 = 2,198.16/x
  3. Step 3: Cross multiply
    6,811.92x = 10,219.32 × 2,198.16
  4. Step 4: Simplify right side
    6,811.92x = 22,463,700.45
  5. Step 5: Solve for x
    x = 22,463,700.45/6,811.92
  6. Step 6: Final answer
    x = 3,297.70

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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.