Home / 4,117.25-5,679.78-2,791.37

Finding the Fourth Proportional to 4,117.25, 5,679.78 and 2,791.37

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Solution

The fourth proportional to 4,117.25, 5,679.78 and 2,791.37 is: 3,850.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,117.25 : 5,679.78 = 2,791.37 : x
  2. Step 2: Convert to fraction form
    4,117.25/5,679.78 = 2,791.37/x
  3. Step 3: Cross multiply
    4,117.25x = 5,679.78 × 2,791.37
  4. Step 4: Simplify right side
    4,117.25x = 15,854,367.50
  5. Step 5: Solve for x
    x = 15,854,367.50/4,117.25
  6. Step 6: Final answer
    x = 3,850.72

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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.