Home / 2,098.81-3,147-1,222.39

Finding the Fourth Proportional to 2,098.81, 3,147 and 1,222.39

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Solution

The fourth proportional to 2,098.81, 3,147 and 1,222.39 is: 1,832.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,098.81 : 3,147 = 1,222.39 : x
  2. Step 2: Convert to fraction form
    2,098.81/3,147 = 1,222.39/x
  3. Step 3: Cross multiply
    2,098.81x = 3,147 × 1,222.39
  4. Step 4: Simplify right side
    2,098.81x = 3,846,861.33
  5. Step 5: Solve for x
    x = 3,846,861.33/2,098.81
  6. Step 6: Final answer
    x = 1,832.88

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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.