Home / 3,745.13-5,617.69-1,279.97

Finding the Fourth Proportional to 3,745.13, 5,617.69 and 1,279.97

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Solution

The fourth proportional to 3,745.13, 5,617.69 and 1,279.97 is: 1,919.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.13 : 5,617.69 = 1,279.97 : x
  2. Step 2: Convert to fraction form
    3,745.13/5,617.69 = 1,279.97/x
  3. Step 3: Cross multiply
    3,745.13x = 5,617.69 × 1,279.97
  4. Step 4: Simplify right side
    3,745.13x = 7,190,477.87
  5. Step 5: Solve for x
    x = 7,190,477.87/3,745.13
  6. Step 6: Final answer
    x = 1,919.96

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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.