Home / 3,447.72-5,172.84-2,150.28

Finding the Fourth Proportional to 3,447.72, 5,172.84 and 2,150.28

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Solution

The fourth proportional to 3,447.72, 5,172.84 and 2,150.28 is: 3,226.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.72 : 5,172.84 = 2,150.28 : x
  2. Step 2: Convert to fraction form
    3,447.72/5,172.84 = 2,150.28/x
  3. Step 3: Cross multiply
    3,447.72x = 5,172.84 × 2,150.28
  4. Step 4: Simplify right side
    3,447.72x = 11,123,054.40
  5. Step 5: Solve for x
    x = 11,123,054.40/3,447.72
  6. Step 6: Final answer
    x = 3,226.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.