Home / 2,745.20-3,813.98-2,712.44

Finding the Fourth Proportional to 2,745.20, 3,813.98 and 2,712.44

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Solution

The fourth proportional to 2,745.20, 3,813.98 and 2,712.44 is: 3,768.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.20 : 3,813.98 = 2,712.44 : x
  2. Step 2: Convert to fraction form
    2,745.20/3,813.98 = 2,712.44/x
  3. Step 3: Cross multiply
    2,745.20x = 3,813.98 × 2,712.44
  4. Step 4: Simplify right side
    2,745.20x = 10,345,191.91
  5. Step 5: Solve for x
    x = 10,345,191.91/2,745.20
  6. Step 6: Final answer
    x = 3,768.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.