Home / 3,712.26-5,122.68-2,220.21

Finding the Fourth Proportional to 3,712.26, 5,122.68 and 2,220.21

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Solution

The fourth proportional to 3,712.26, 5,122.68 and 2,220.21 is: 3,063.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.26 : 5,122.68 = 2,220.21 : x
  2. Step 2: Convert to fraction form
    3,712.26/5,122.68 = 2,220.21/x
  3. Step 3: Cross multiply
    3,712.26x = 5,122.68 × 2,220.21
  4. Step 4: Simplify right side
    3,712.26x = 11,373,425.36
  5. Step 5: Solve for x
    x = 11,373,425.36/3,712.26
  6. Step 6: Final answer
    x = 3,063.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.