Home / 3,072.30-4,238.58-1,745.82

Finding the Fourth Proportional to 3,072.30, 4,238.58 and 1,745.82

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Solution

The fourth proportional to 3,072.30, 4,238.58 and 1,745.82 is: 2,408.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.30 : 4,238.58 = 1,745.82 : x
  2. Step 2: Convert to fraction form
    3,072.30/4,238.58 = 1,745.82/x
  3. Step 3: Cross multiply
    3,072.30x = 4,238.58 × 1,745.82
  4. Step 4: Simplify right side
    3,072.30x = 7,399,797.74
  5. Step 5: Solve for x
    x = 7,399,797.74/3,072.30
  6. Step 6: Final answer
    x = 2,408.55

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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.