Home / 2,021.36-3,032.44-634.43

Finding the Fourth Proportional to 2,021.36, 3,032.44 and 634.43

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Solution

The fourth proportional to 2,021.36, 3,032.44 and 634.43 is: 951.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.36 : 3,032.44 = 634.43 : x
  2. Step 2: Convert to fraction form
    2,021.36/3,032.44 = 634.43/x
  3. Step 3: Cross multiply
    2,021.36x = 3,032.44 × 634.43
  4. Step 4: Simplify right side
    2,021.36x = 1,923,876.90
  5. Step 5: Solve for x
    x = 1,923,876.90/2,021.36
  6. Step 6: Final answer
    x = 951.78

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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.