Home / 3,664.97-5,057.70-2,172.32

Finding the Fourth Proportional to 3,664.97, 5,057.70 and 2,172.32

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Solution

The fourth proportional to 3,664.97, 5,057.70 and 2,172.32 is: 2,997.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,664.97 : 5,057.70 = 2,172.32 : x
  2. Step 2: Convert to fraction form
    3,664.97/5,057.70 = 2,172.32/x
  3. Step 3: Cross multiply
    3,664.97x = 5,057.70 × 2,172.32
  4. Step 4: Simplify right side
    3,664.97x = 10,986,942.86
  5. Step 5: Solve for x
    x = 10,986,942.86/3,664.97
  6. Step 6: Final answer
    x = 2,997.83

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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.