Home / 3,789.11-5,679.05-1,708.56

Finding the Fourth Proportional to 3,789.11, 5,679.05 and 1,708.56

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Solution

The fourth proportional to 3,789.11, 5,679.05 and 1,708.56 is: 2,560.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.11 : 5,679.05 = 1,708.56 : x
  2. Step 2: Convert to fraction form
    3,789.11/5,679.05 = 1,708.56/x
  3. Step 3: Cross multiply
    3,789.11x = 5,679.05 × 1,708.56
  4. Step 4: Simplify right side
    3,789.11x = 9,702,989.13
  5. Step 5: Solve for x
    x = 9,702,989.13/3,789.11
  6. Step 6: Final answer
    x = 2,560.76

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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.