Home / 3,789.60-5,226.98-2,218.01

Finding the Fourth Proportional to 3,789.60, 5,226.98 and 2,218.01

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Solution

The fourth proportional to 3,789.60, 5,226.98 and 2,218.01 is: 3,059.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.60 : 5,226.98 = 2,218.01 : x
  2. Step 2: Convert to fraction form
    3,789.60/5,226.98 = 2,218.01/x
  3. Step 3: Cross multiply
    3,789.60x = 5,226.98 × 2,218.01
  4. Step 4: Simplify right side
    3,789.60x = 11,593,456.68
  5. Step 5: Solve for x
    x = 11,593,456.68/3,789.60
  6. Step 6: Final answer
    x = 3,059.28

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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.