Home / 2,629.03-3,936.25-1,327.76

Finding the Fourth Proportional to 2,629.03, 3,936.25 and 1,327.76

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Solution

The fourth proportional to 2,629.03, 3,936.25 and 1,327.76 is: 1,987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.03 : 3,936.25 = 1,327.76 : x
  2. Step 2: Convert to fraction form
    2,629.03/3,936.25 = 1,327.76/x
  3. Step 3: Cross multiply
    2,629.03x = 3,936.25 × 1,327.76
  4. Step 4: Simplify right side
    2,629.03x = 5,226,388.66
  5. Step 5: Solve for x
    x = 5,226,388.66/2,629.03
  6. Step 6: Final answer
    x = 1,987.96

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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.