Home / 3,822.90-5,739.82-2,838.75

Finding the Fourth Proportional to 3,822.90, 5,739.82 and 2,838.75

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Solution

The fourth proportional to 3,822.90, 5,739.82 and 2,838.75 is: 4,262.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.90 : 5,739.82 = 2,838.75 : x
  2. Step 2: Convert to fraction form
    3,822.90/5,739.82 = 2,838.75/x
  3. Step 3: Cross multiply
    3,822.90x = 5,739.82 × 2,838.75
  4. Step 4: Simplify right side
    3,822.90x = 16,293,914.03
  5. Step 5: Solve for x
    x = 16,293,914.03/3,822.90
  6. Step 6: Final answer
    x = 4,262.19

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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.