Home / 3,672.78-5,066.79-2,179.86

Finding the Fourth Proportional to 3,672.78, 5,066.79 and 2,179.86

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Solution

The fourth proportional to 3,672.78, 5,066.79 and 2,179.86 is: 3,007.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.78 : 5,066.79 = 2,179.86 : x
  2. Step 2: Convert to fraction form
    3,672.78/5,066.79 = 2,179.86/x
  3. Step 3: Cross multiply
    3,672.78x = 5,066.79 × 2,179.86
  4. Step 4: Simplify right side
    3,672.78x = 11,044,892.85
  5. Step 5: Solve for x
    x = 11,044,892.85/3,672.78
  6. Step 6: Final answer
    x = 3,007.23

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1.5x scale

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.