Home / 3,740.25-5,161.25-2,168.45

Finding the Fourth Proportional to 3,740.25, 5,161.25 and 2,168.45

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Solution

The fourth proportional to 3,740.25, 5,161.25 and 2,168.45 is: 2,992.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.25 : 5,161.25 = 2,168.45 : x
  2. Step 2: Convert to fraction form
    3,740.25/5,161.25 = 2,168.45/x
  3. Step 3: Cross multiply
    3,740.25x = 5,161.25 × 2,168.45
  4. Step 4: Simplify right side
    3,740.25x = 11,191,912.56
  5. Step 5: Solve for x
    x = 11,191,912.56/3,740.25
  6. Step 6: Final answer
    x = 2,992.29

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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.