Home / 3,977.09-5,965.73-2,221.11

Finding the Fourth Proportional to 3,977.09, 5,965.73 and 2,221.11

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Solution

The fourth proportional to 3,977.09, 5,965.73 and 2,221.11 is: 3,331.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.09 : 5,965.73 = 2,221.11 : x
  2. Step 2: Convert to fraction form
    3,977.09/5,965.73 = 2,221.11/x
  3. Step 3: Cross multiply
    3,977.09x = 5,965.73 × 2,221.11
  4. Step 4: Simplify right side
    3,977.09x = 13,250,548.11
  5. Step 5: Solve for x
    x = 13,250,548.11/3,977.09
  6. Step 6: Final answer
    x = 3,331.72

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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.