Home / 3,755.46-5,187.85-3,418.81

Finding the Fourth Proportional to 3,755.46, 5,187.85 and 3,418.81

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Solution

The fourth proportional to 3,755.46, 5,187.85 and 3,418.81 is: 4,722.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.46 : 5,187.85 = 3,418.81 : x
  2. Step 2: Convert to fraction form
    3,755.46/5,187.85 = 3,418.81/x
  3. Step 3: Cross multiply
    3,755.46x = 5,187.85 × 3,418.81
  4. Step 4: Simplify right side
    3,755.46x = 17,736,251.94
  5. Step 5: Solve for x
    x = 17,736,251.94/3,755.46
  6. Step 6: Final answer
    x = 4,722.79

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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.