Home / 5,149.67-7,106.54-2,791.81

Finding the Fourth Proportional to 5,149.67, 7,106.54 and 2,791.81

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Solution

The fourth proportional to 5,149.67, 7,106.54 and 2,791.81 is: 3,852.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.67 : 7,106.54 = 2,791.81 : x
  2. Step 2: Convert to fraction form
    5,149.67/7,106.54 = 2,791.81/x
  3. Step 3: Cross multiply
    5,149.67x = 7,106.54 × 2,791.81
  4. Step 4: Simplify right side
    5,149.67x = 19,840,109.44
  5. Step 5: Solve for x
    x = 19,840,109.44/5,149.67
  6. Step 6: Final answer
    x = 3,852.70

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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.