Home / 3,828.25-5,282.99-2,172.25

Finding the Fourth Proportional to 3,828.25, 5,282.99 and 2,172.25

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Solution

The fourth proportional to 3,828.25, 5,282.99 and 2,172.25 is: 2,997.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.25 : 5,282.99 = 2,172.25 : x
  2. Step 2: Convert to fraction form
    3,828.25/5,282.99 = 2,172.25/x
  3. Step 3: Cross multiply
    3,828.25x = 5,282.99 × 2,172.25
  4. Step 4: Simplify right side
    3,828.25x = 11,475,975.03
  5. Step 5: Solve for x
    x = 11,475,975.03/3,828.25
  6. Step 6: Final answer
    x = 2,997.71

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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.