Home / 3,753.99-5,179.62-2,181.78

Finding the Fourth Proportional to 3,753.99, 5,179.62 and 2,181.78

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Solution

The fourth proportional to 3,753.99, 5,179.62 and 2,181.78 is: 3,010.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.99 : 5,179.62 = 2,181.78 : x
  2. Step 2: Convert to fraction form
    3,753.99/5,179.62 = 2,181.78/x
  3. Step 3: Cross multiply
    3,753.99x = 5,179.62 × 2,181.78
  4. Step 4: Simplify right side
    3,753.99x = 11,300,791.32
  5. Step 5: Solve for x
    x = 11,300,791.32/3,753.99
  6. Step 6: Final answer
    x = 3,010.34

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1.5x scale

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.