Home / 2,221.93-3,331.50-1,181.29

Finding the Fourth Proportional to 2,221.93, 3,331.50 and 1,181.29

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Solution

The fourth proportional to 2,221.93, 3,331.50 and 1,181.29 is: 1,771.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.93 : 3,331.50 = 1,181.29 : x
  2. Step 2: Convert to fraction form
    2,221.93/3,331.50 = 1,181.29/x
  3. Step 3: Cross multiply
    2,221.93x = 3,331.50 × 1,181.29
  4. Step 4: Simplify right side
    2,221.93x = 3,935,467.64
  5. Step 5: Solve for x
    x = 3,935,467.64/2,221.93
  6. Step 6: Final answer
    x = 1,771.19

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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.