Home / 1,983.32-2,736.97-1,099.12

Finding the Fourth Proportional to 1,983.32, 2,736.97 and 1,099.12

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Solution

The fourth proportional to 1,983.32, 2,736.97 and 1,099.12 is: 1,516.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.32 : 2,736.97 = 1,099.12 : x
  2. Step 2: Convert to fraction form
    1,983.32/2,736.97 = 1,099.12/x
  3. Step 3: Cross multiply
    1,983.32x = 2,736.97 × 1,099.12
  4. Step 4: Simplify right side
    1,983.32x = 3,008,258.47
  5. Step 5: Solve for x
    x = 3,008,258.47/1,983.32
  6. Step 6: Final answer
    x = 1,516.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.