Home / 3,821.40-5,734.44-2,091.24

Finding the Fourth Proportional to 3,821.40, 5,734.44 and 2,091.24

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Solution

The fourth proportional to 3,821.40, 5,734.44 and 2,091.24 is: 3,138.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.40 : 5,734.44 = 2,091.24 : x
  2. Step 2: Convert to fraction form
    3,821.40/5,734.44 = 2,091.24/x
  3. Step 3: Cross multiply
    3,821.40x = 5,734.44 × 2,091.24
  4. Step 4: Simplify right side
    3,821.40x = 11,992,090.31
  5. Step 5: Solve for x
    x = 11,992,090.31/3,821.40
  6. Step 6: Final answer
    x = 3,138.14

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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.