Home / 2,115.91-3,173.25-635.27

Finding the Fourth Proportional to 2,115.91, 3,173.25 and 635.27

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Solution

The fourth proportional to 2,115.91, 3,173.25 and 635.27 is: 952.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115.91 : 3,173.25 = 635.27 : x
  2. Step 2: Convert to fraction form
    2,115.91/3,173.25 = 635.27/x
  3. Step 3: Cross multiply
    2,115.91x = 3,173.25 × 635.27
  4. Step 4: Simplify right side
    2,115.91x = 2,015,870.53
  5. Step 5: Solve for x
    x = 2,015,870.53/2,115.91
  6. Step 6: Final answer
    x = 952.72

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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.