Home / 2,022.63-2,791.36-1,138.51

Finding the Fourth Proportional to 2,022.63, 2,791.36 and 1,138.51

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Solution

The fourth proportional to 2,022.63, 2,791.36 and 1,138.51 is: 1,571.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,022.63 : 2,791.36 = 1,138.51 : x
  2. Step 2: Convert to fraction form
    2,022.63/2,791.36 = 1,138.51/x
  3. Step 3: Cross multiply
    2,022.63x = 2,791.36 × 1,138.51
  4. Step 4: Simplify right side
    2,022.63x = 3,177,991.27
  5. Step 5: Solve for x
    x = 3,177,991.27/2,022.63
  6. Step 6: Final answer
    x = 1,571.22

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1.5x scale

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.