Home / 2,822.53-3,893.15-1,936.79

Finding the Fourth Proportional to 2,822.53, 3,893.15 and 1,936.79

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Solution

The fourth proportional to 2,822.53, 3,893.15 and 1,936.79 is: 2,671.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.53 : 3,893.15 = 1,936.79 : x
  2. Step 2: Convert to fraction form
    2,822.53/3,893.15 = 1,936.79/x
  3. Step 3: Cross multiply
    2,822.53x = 3,893.15 × 1,936.79
  4. Step 4: Simplify right side
    2,822.53x = 7,540,204.30
  5. Step 5: Solve for x
    x = 7,540,204.30/2,822.53
  6. Step 6: Final answer
    x = 2,671.44

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Why These Related Problems?

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