Home / 2,022.54-2,791.36-1,138.51

Finding the Fourth Proportional to 2,022.54, 2,791.36 and 1,138.51

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Solution

The fourth proportional to 2,022.54, 2,791.36 and 1,138.51 is: 1,571.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,022.54 : 2,791.36 = 1,138.51 : x
  2. Step 2: Convert to fraction form
    2,022.54/2,791.36 = 1,138.51/x
  3. Step 3: Cross multiply
    2,022.54x = 2,791.36 × 1,138.51
  4. Step 4: Simplify right side
    2,022.54x = 3,177,981.45
  5. Step 5: Solve for x
    x = 3,177,981.45/2,022.54
  6. Step 6: Final answer
    x = 1,571.29

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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.