Home / 3,723.32-5,138.67-2,151.11

Finding the Fourth Proportional to 3,723.32, 5,138.67 and 2,151.11

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Solution

The fourth proportional to 3,723.32, 5,138.67 and 2,151.11 is: 2,968.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.32 : 5,138.67 = 2,151.11 : x
  2. Step 2: Convert to fraction form
    3,723.32/5,138.67 = 2,151.11/x
  3. Step 3: Cross multiply
    3,723.32x = 5,138.67 × 2,151.11
  4. Step 4: Simplify right side
    3,723.32x = 11,053,844.42
  5. Step 5: Solve for x
    x = 11,053,844.42/3,723.32
  6. Step 6: Final answer
    x = 2,968.81

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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.