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Finding the Fourth Proportional to 3,907.80, 5,371.97 and 3,367.44

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Solution

The fourth proportional to 3,907.80, 5,371.97 and 3,367.44 is: 4,629.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907.80 : 5,371.97 = 3,367.44 : x
  2. Step 2: Convert to fraction form
    3,907.80/5,371.97 = 3,367.44/x
  3. Step 3: Cross multiply
    3,907.80x = 5,371.97 × 3,367.44
  4. Step 4: Simplify right side
    3,907.80x = 18,089,769.82
  5. Step 5: Solve for x
    x = 18,089,769.82/3,907.80
  6. Step 6: Final answer
    x = 4,629.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.