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Finding the Fourth Proportional to 7,180.88, 9,910.42 and 4,037

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Solution

The fourth proportional to 7,180.88, 9,910.42 and 4,037 is: 5,571.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.88 : 9,910.42 = 4,037 : x
  2. Step 2: Convert to fraction form
    7,180.88/9,910.42 = 4,037/x
  3. Step 3: Cross multiply
    7,180.88x = 9,910.42 × 4,037
  4. Step 4: Simplify right side
    7,180.88x = 40,008,365.54
  5. Step 5: Solve for x
    x = 40,008,365.54/7,180.88
  6. Step 6: Final answer
    x = 5,571.51

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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.