Home / 3,744.69-5,168.12-2,172.84

Finding the Fourth Proportional to 3,744.69, 5,168.12 and 2,172.84

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Solution

The fourth proportional to 3,744.69, 5,168.12 and 2,172.84 is: 2,998.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,744.69 : 5,168.12 = 2,172.84 : x
  2. Step 2: Convert to fraction form
    3,744.69/5,168.12 = 2,172.84/x
  3. Step 3: Cross multiply
    3,744.69x = 5,168.12 × 2,172.84
  4. Step 4: Simplify right side
    3,744.69x = 11,229,487.00
  5. Step 5: Solve for x
    x = 11,229,487.00/3,744.69
  6. Step 6: Final answer
    x = 2,998.78

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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.