Home / 3,936.98-5,907.46-2,181.64

Finding the Fourth Proportional to 3,936.98, 5,907.46 and 2,181.64

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Solution

The fourth proportional to 3,936.98, 5,907.46 and 2,181.64 is: 3,273.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.98 : 5,907.46 = 2,181.64 : x
  2. Step 2: Convert to fraction form
    3,936.98/5,907.46 = 2,181.64/x
  3. Step 3: Cross multiply
    3,936.98x = 5,907.46 × 2,181.64
  4. Step 4: Simplify right side
    3,936.98x = 12,887,951.03
  5. Step 5: Solve for x
    x = 12,887,951.03/3,936.98
  6. Step 6: Final answer
    x = 3,273.56

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1.5x scale

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.