Home / 2,816.96-4,228.64-2,201.28

Finding the Fourth Proportional to 2,816.96, 4,228.64 and 2,201.28

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Solution

The fourth proportional to 2,816.96, 4,228.64 and 2,201.28 is: 3,304.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.96 : 4,228.64 = 2,201.28 : x
  2. Step 2: Convert to fraction form
    2,816.96/4,228.64 = 2,201.28/x
  3. Step 3: Cross multiply
    2,816.96x = 4,228.64 × 2,201.28
  4. Step 4: Simplify right side
    2,816.96x = 9,308,420.66
  5. Step 5: Solve for x
    x = 9,308,420.66/2,816.96
  6. Step 6: Final answer
    x = 3,304.42

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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.