Home / 3,789.87-5,682.83-1,708.11

Finding the Fourth Proportional to 3,789.87, 5,682.83 and 1,708.11

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Solution

The fourth proportional to 3,789.87, 5,682.83 and 1,708.11 is: 2,561.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.87 : 5,682.83 = 1,708.11 : x
  2. Step 2: Convert to fraction form
    3,789.87/5,682.83 = 1,708.11/x
  3. Step 3: Cross multiply
    3,789.87x = 5,682.83 × 1,708.11
  4. Step 4: Simplify right side
    3,789.87x = 9,706,890.21
  5. Step 5: Solve for x
    x = 9,706,890.21/3,789.87
  6. Step 6: Final answer
    x = 2,561.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.