Home / 3,380.31-5,076.08-2,089.98

Finding the Fourth Proportional to 3,380.31, 5,076.08 and 2,089.98

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Solution

The fourth proportional to 3,380.31, 5,076.08 and 2,089.98 is: 3,138.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.31 : 5,076.08 = 2,089.98 : x
  2. Step 2: Convert to fraction form
    3,380.31/5,076.08 = 2,089.98/x
  3. Step 3: Cross multiply
    3,380.31x = 5,076.08 × 2,089.98
  4. Step 4: Simplify right side
    3,380.31x = 10,608,905.68
  5. Step 5: Solve for x
    x = 10,608,905.68/3,380.31
  6. Step 6: Final answer
    x = 3,138.44

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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.