Home / 3,621.24-5,427.78-2,157.33

Finding the Fourth Proportional to 3,621.24, 5,427.78 and 2,157.33

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Solution

The fourth proportional to 3,621.24, 5,427.78 and 2,157.33 is: 3,233.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.24 : 5,427.78 = 2,157.33 : x
  2. Step 2: Convert to fraction form
    3,621.24/5,427.78 = 2,157.33/x
  3. Step 3: Cross multiply
    3,621.24x = 5,427.78 × 2,157.33
  4. Step 4: Simplify right side
    3,621.24x = 11,709,512.63
  5. Step 5: Solve for x
    x = 11,709,512.63/3,621.24
  6. Step 6: Final answer
    x = 3,233.56

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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.