Home / 3,949.44-5,452.80-3,112.32

Finding the Fourth Proportional to 3,949.44, 5,452.80 and 3,112.32

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Solution

The fourth proportional to 3,949.44, 5,452.80 and 3,112.32 is: 4,297.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.44 : 5,452.80 = 3,112.32 : x
  2. Step 2: Convert to fraction form
    3,949.44/5,452.80 = 3,112.32/x
  3. Step 3: Cross multiply
    3,949.44x = 5,452.80 × 3,112.32
  4. Step 4: Simplify right side
    3,949.44x = 16,970,858.50
  5. Step 5: Solve for x
    x = 16,970,858.50/3,949.44
  6. Step 6: Final answer
    x = 4,297.03

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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.