Home / 5,149.59-7,106.46-2,791.71

Finding the Fourth Proportional to 5,149.59, 7,106.46 and 2,791.71

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Solution

The fourth proportional to 5,149.59, 7,106.46 and 2,791.71 is: 3,852.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.59 : 7,106.46 = 2,791.71 : x
  2. Step 2: Convert to fraction form
    5,149.59/7,106.46 = 2,791.71/x
  3. Step 3: Cross multiply
    5,149.59x = 7,106.46 × 2,791.71
  4. Step 4: Simplify right side
    5,149.59x = 19,839,175.45
  5. Step 5: Solve for x
    x = 19,839,175.45/5,149.59
  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.