Home / 3,745.80-5,168.34-2,172.96

Finding the Fourth Proportional to 3,745.80, 5,168.34 and 2,172.96

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Solution

The fourth proportional to 3,745.80, 5,168.34 and 2,172.96 is: 2,998.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.80 : 5,168.34 = 2,172.96 : x
  2. Step 2: Convert to fraction form
    3,745.80/5,168.34 = 2,172.96/x
  3. Step 3: Cross multiply
    3,745.80x = 5,168.34 × 2,172.96
  4. Step 4: Simplify right side
    3,745.80x = 11,230,596.09
  5. Step 5: Solve for x
    x = 11,230,596.09/3,745.80
  6. Step 6: Final answer
    x = 2,998.18

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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.