Home / 3,722.96-5,137.80-2,789.84

Finding the Fourth Proportional to 3,722.96, 5,137.80 and 2,789.84

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Solution

The fourth proportional to 3,722.96, 5,137.80 and 2,789.84 is: 3,850.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.96 : 5,137.80 = 2,789.84 : x
  2. Step 2: Convert to fraction form
    3,722.96/5,137.80 = 2,789.84/x
  3. Step 3: Cross multiply
    3,722.96x = 5,137.80 × 2,789.84
  4. Step 4: Simplify right side
    3,722.96x = 14,333,639.95
  5. Step 5: Solve for x
    x = 14,333,639.95/3,722.96
  6. Step 6: Final answer
    x = 3,850.07

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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.