Home / 3,745.12-5,639.62-2,778.04

Finding the Fourth Proportional to 3,745.12, 5,639.62 and 2,778.04

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Solution

The fourth proportional to 3,745.12, 5,639.62 and 2,778.04 is: 4,183.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.12 : 5,639.62 = 2,778.04 : x
  2. Step 2: Convert to fraction form
    3,745.12/5,639.62 = 2,778.04/x
  3. Step 3: Cross multiply
    3,745.12x = 5,639.62 × 2,778.04
  4. Step 4: Simplify right side
    3,745.12x = 15,667,089.94
  5. Step 5: Solve for x
    x = 15,667,089.94/3,745.12
  6. Step 6: Final answer
    x = 4,183.33

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.