Home / 5,149.56-7,106.41-2,791.71

Finding the Fourth Proportional to 5,149.56, 7,106.41 and 2,791.71

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Solution

The fourth proportional to 5,149.56, 7,106.41 and 2,791.71 is: 3,852.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.56 : 7,106.41 = 2,791.71 : x
  2. Step 2: Convert to fraction form
    5,149.56/7,106.41 = 2,791.71/x
  3. Step 3: Cross multiply
    5,149.56x = 7,106.41 × 2,791.71
  4. Step 4: Simplify right side
    5,149.56x = 19,839,021.90
  5. Step 5: Solve for x
    x = 19,839,021.90/5,149.56
  6. Step 6: Final answer
    x = 3,852.57

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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.