Home / 2,825.28-3,893.92-2,384.32

Finding the Fourth Proportional to 2,825.28, 3,893.92 and 2,384.32

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Solution

The fourth proportional to 2,825.28, 3,893.92 and 2,384.32 is: 3,286.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.28 : 3,893.92 = 2,384.32 : x
  2. Step 2: Convert to fraction form
    2,825.28/3,893.92 = 2,384.32/x
  3. Step 3: Cross multiply
    2,825.28x = 3,893.92 × 2,384.32
  4. Step 4: Simplify right side
    2,825.28x = 9,284,351.33
  5. Step 5: Solve for x
    x = 9,284,351.33/2,825.28
  6. Step 6: Final answer
    x = 3,286.17

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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.