Home / 1,571.43-2,167.36-1,067.66

Finding the Fourth Proportional to 1,571.43, 2,167.36 and 1,067.66

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Solution

The fourth proportional to 1,571.43, 2,167.36 and 1,067.66 is: 1,472.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.43 : 2,167.36 = 1,067.66 : x
  2. Step 2: Convert to fraction form
    1,571.43/2,167.36 = 1,067.66/x
  3. Step 3: Cross multiply
    1,571.43x = 2,167.36 × 1,067.66
  4. Step 4: Simplify right side
    1,571.43x = 2,314,014.89
  5. Step 5: Solve for x
    x = 2,314,014.89/1,571.43
  6. Step 6: Final answer
    x = 1,472.56

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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.