Home / 2,221.32-3,331.97-577.73

Finding the Fourth Proportional to 2,221.32, 3,331.97 and 577.73

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Solution

The fourth proportional to 2,221.32, 3,331.97 and 577.73 is: 866.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.32 : 3,331.97 = 577.73 : x
  2. Step 2: Convert to fraction form
    2,221.32/3,331.97 = 577.73/x
  3. Step 3: Cross multiply
    2,221.32x = 3,331.97 × 577.73
  4. Step 4: Simplify right side
    2,221.32x = 1,924,979.03
  5. Step 5: Solve for x
    x = 1,924,979.03/2,221.32
  6. Step 6: Final answer
    x = 866.59

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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.