Home / 4,259.28-5,878.26-2,687.88

Finding the Fourth Proportional to 4,259.28, 5,878.26 and 2,687.88

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Solution

The fourth proportional to 4,259.28, 5,878.26 and 2,687.88 is: 3,709.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,259.28 : 5,878.26 = 2,687.88 : x
  2. Step 2: Convert to fraction form
    4,259.28/5,878.26 = 2,687.88/x
  3. Step 3: Cross multiply
    4,259.28x = 5,878.26 × 2,687.88
  4. Step 4: Simplify right side
    4,259.28x = 15,800,057.49
  5. Step 5: Solve for x
    x = 15,800,057.49/4,259.28
  6. Step 6: Final answer
    x = 3,709.56

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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.