Home / 3,928.25-5,892.38-1,192.25

Finding the Fourth Proportional to 3,928.25, 5,892.38 and 1,192.25

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Solution

The fourth proportional to 3,928.25, 5,892.38 and 1,192.25 is: 1,788.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.25 : 5,892.38 = 1,192.25 : x
  2. Step 2: Convert to fraction form
    3,928.25/5,892.38 = 1,192.25/x
  3. Step 3: Cross multiply
    3,928.25x = 5,892.38 × 1,192.25
  4. Step 4: Simplify right side
    3,928.25x = 7,025,184.09
  5. Step 5: Solve for x
    x = 7,025,184.09/3,928.25
  6. Step 6: Final answer
    x = 1,788.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.