Home / 2,256.96-3,380.64-1,282.56

Finding the Fourth Proportional to 2,256.96, 3,380.64 and 1,282.56

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Solution

The fourth proportional to 2,256.96, 3,380.64 and 1,282.56 is: 1,921.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.96 : 3,380.64 = 1,282.56 : x
  2. Step 2: Convert to fraction form
    2,256.96/3,380.64 = 1,282.56/x
  3. Step 3: Cross multiply
    2,256.96x = 3,380.64 × 1,282.56
  4. Step 4: Simplify right side
    2,256.96x = 4,335,873.64
  5. Step 5: Solve for x
    x = 4,335,873.64/2,256.96
  6. Step 6: Final answer
    x = 1,921.11

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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.