Home / 5,149.80-7,106.69-2,791.94

Finding the Fourth Proportional to 5,149.80, 7,106.69 and 2,791.94

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Solution

The fourth proportional to 5,149.80, 7,106.69 and 2,791.94 is: 3,852.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.80 : 7,106.69 = 2,791.94 : x
  2. Step 2: Convert to fraction form
    5,149.80/7,106.69 = 2,791.94/x
  3. Step 3: Cross multiply
    5,149.80x = 7,106.69 × 2,791.94
  4. Step 4: Simplify right side
    5,149.80x = 19,841,402.59
  5. Step 5: Solve for x
    x = 19,841,402.59/5,149.80
  6. Step 6: Final answer
    x = 3,852.85

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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.