Home / 3,639.48-5,450.76-2,175.41

Finding the Fourth Proportional to 3,639.48, 5,450.76 and 2,175.41

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Solution

The fourth proportional to 3,639.48, 5,450.76 and 2,175.41 is: 3,258.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.48 : 5,450.76 = 2,175.41 : x
  2. Step 2: Convert to fraction form
    3,639.48/5,450.76 = 2,175.41/x
  3. Step 3: Cross multiply
    3,639.48x = 5,450.76 × 2,175.41
  4. Step 4: Simplify right side
    3,639.48x = 11,857,610.56
  5. Step 5: Solve for x
    x = 11,857,610.56/3,639.48
  6. Step 6: Final answer
    x = 3,258.05

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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.