Home / 3,727.70-5,144.94-2,155.82

Finding the Fourth Proportional to 3,727.70, 5,144.94 and 2,155.82

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Solution

The fourth proportional to 3,727.70, 5,144.94 and 2,155.82 is: 2,975.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.70 : 5,144.94 = 2,155.82 : x
  2. Step 2: Convert to fraction form
    3,727.70/5,144.94 = 2,155.82/x
  3. Step 3: Cross multiply
    3,727.70x = 5,144.94 × 2,155.82
  4. Step 4: Simplify right side
    3,727.70x = 11,091,564.55
  5. Step 5: Solve for x
    x = 11,091,564.55/3,727.70
  6. Step 6: Final answer
    x = 2,975.44

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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.