Home / 3,723.32-5,137.98-2,151.38

Finding the Fourth Proportional to 3,723.32, 5,137.98 and 2,151.38

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Solution

The fourth proportional to 3,723.32, 5,137.98 and 2,151.38 is: 2,968.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.32 : 5,137.98 = 2,151.38 : x
  2. Step 2: Convert to fraction form
    3,723.32/5,137.98 = 2,151.38/x
  3. Step 3: Cross multiply
    3,723.32x = 5,137.98 × 2,151.38
  4. Step 4: Simplify right side
    3,723.32x = 11,053,747.41
  5. Step 5: Solve for x
    x = 11,053,747.41/3,723.32
  6. Step 6: Final answer
    x = 2,968.79

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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.