Home / 3,753.60-5,179.80-2,181.60

Finding the Fourth Proportional to 3,753.60, 5,179.80 and 2,181.60

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Solution

The fourth proportional to 3,753.60, 5,179.80 and 2,181.60 is: 3,010.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.60 : 5,179.80 = 2,181.60 : x
  2. Step 2: Convert to fraction form
    3,753.60/5,179.80 = 2,181.60/x
  3. Step 3: Cross multiply
    3,753.60x = 5,179.80 × 2,181.60
  4. Step 4: Simplify right side
    3,753.60x = 11,300,251.68
  5. Step 5: Solve for x
    x = 11,300,251.68/3,753.60
  6. Step 6: Final answer
    x = 3,010.51

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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.