Home / 2,783.28-3,843.84-1,901.36

Finding the Fourth Proportional to 2,783.28, 3,843.84 and 1,901.36

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Solution

The fourth proportional to 2,783.28, 3,843.84 and 1,901.36 is: 2,625.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.28 : 3,843.84 = 1,901.36 : x
  2. Step 2: Convert to fraction form
    2,783.28/3,843.84 = 1,901.36/x
  3. Step 3: Cross multiply
    2,783.28x = 3,843.84 × 1,901.36
  4. Step 4: Simplify right side
    2,783.28x = 7,308,523.62
  5. Step 5: Solve for x
    x = 7,308,523.62/2,783.28
  6. Step 6: Final answer
    x = 2,625.87

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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.