Home / 1,921.38-2,882.13-1,099.27

Finding the Fourth Proportional to 1,921.38, 2,882.13 and 1,099.27

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Solution

The fourth proportional to 1,921.38, 2,882.13 and 1,099.27 is: 1,648.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.38 : 2,882.13 = 1,099.27 : x
  2. Step 2: Convert to fraction form
    1,921.38/2,882.13 = 1,099.27/x
  3. Step 3: Cross multiply
    1,921.38x = 2,882.13 × 1,099.27
  4. Step 4: Simplify right side
    1,921.38x = 3,168,239.05
  5. Step 5: Solve for x
    x = 3,168,239.05/1,921.38
  6. Step 6: Final answer
    x = 1,648.94

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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.