Home / 2,745.04-3,786.83-2,638.96

Finding the Fourth Proportional to 2,745.04, 3,786.83 and 2,638.96

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Solution

The fourth proportional to 2,745.04, 3,786.83 and 2,638.96 is: 3,640.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.04 : 3,786.83 = 2,638.96 : x
  2. Step 2: Convert to fraction form
    2,745.04/3,786.83 = 2,638.96/x
  3. Step 3: Cross multiply
    2,745.04x = 3,786.83 × 2,638.96
  4. Step 4: Simplify right side
    2,745.04x = 9,993,292.90
  5. Step 5: Solve for x
    x = 9,993,292.90/2,745.04
  6. Step 6: Final answer
    x = 3,640.49

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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.