Home / 2,221.29-3,331.94-577.83

Finding the Fourth Proportional to 2,221.29, 3,331.94 and 577.83

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Solution

The fourth proportional to 2,221.29, 3,331.94 and 577.83 is: 866.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.29 : 3,331.94 = 577.83 : x
  2. Step 2: Convert to fraction form
    2,221.29/3,331.94 = 577.83/x
  3. Step 3: Cross multiply
    2,221.29x = 3,331.94 × 577.83
  4. Step 4: Simplify right side
    2,221.29x = 1,925,311.57
  5. Step 5: Solve for x
    x = 1,925,311.57/2,221.29
  6. Step 6: Final answer
    x = 866.75

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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.