Home / 3,874.19-5,345.20-2,195.33

Finding the Fourth Proportional to 3,874.19, 5,345.20 and 2,195.33

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Solution

The fourth proportional to 3,874.19, 5,345.20 and 2,195.33 is: 3,028.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.19 : 5,345.20 = 2,195.33 : x
  2. Step 2: Convert to fraction form
    3,874.19/5,345.20 = 2,195.33/x
  3. Step 3: Cross multiply
    3,874.19x = 5,345.20 × 2,195.33
  4. Step 4: Simplify right side
    3,874.19x = 11,734,466.94
  5. Step 5: Solve for x
    x = 11,734,466.94/3,874.19
  6. Step 6: Final answer
    x = 3,028.88

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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.