Home / 3,975.28-5,963.89-2,807.56

Finding the Fourth Proportional to 3,975.28, 5,963.89 and 2,807.56

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Solution

The fourth proportional to 3,975.28, 5,963.89 and 2,807.56 is: 4,212.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.28 : 5,963.89 = 2,807.56 : x
  2. Step 2: Convert to fraction form
    3,975.28/5,963.89 = 2,807.56/x
  3. Step 3: Cross multiply
    3,975.28x = 5,963.89 × 2,807.56
  4. Step 4: Simplify right side
    3,975.28x = 16,743,976.81
  5. Step 5: Solve for x
    x = 16,743,976.81/3,975.28
  6. Step 6: Final answer
    x = 4,212.02

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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.