Home / 3,072.15-4,238.87-1,745.73

Finding the Fourth Proportional to 3,072.15, 4,238.87 and 1,745.73

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Solution

The fourth proportional to 3,072.15, 4,238.87 and 1,745.73 is: 2,408.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.15 : 4,238.87 = 1,745.73 : x
  2. Step 2: Convert to fraction form
    3,072.15/4,238.87 = 1,745.73/x
  3. Step 3: Cross multiply
    3,072.15x = 4,238.87 × 1,745.73
  4. Step 4: Simplify right side
    3,072.15x = 7,399,913.80
  5. Step 5: Solve for x
    x = 7,399,913.80/3,072.15
  6. Step 6: Final answer
    x = 2,408.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.