Home / 3,935.82-5,898.60-1,986.96

Finding the Fourth Proportional to 3,935.82, 5,898.60 and 1,986.96

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Solution

The fourth proportional to 3,935.82, 5,898.60 and 1,986.96 is: 2,977.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.82 : 5,898.60 = 1,986.96 : x
  2. Step 2: Convert to fraction form
    3,935.82/5,898.60 = 1,986.96/x
  3. Step 3: Cross multiply
    3,935.82x = 5,898.60 × 1,986.96
  4. Step 4: Simplify right side
    3,935.82x = 11,720,282.26
  5. Step 5: Solve for x
    x = 11,720,282.26/3,935.82
  6. Step 6: Final answer
    x = 2,977.85

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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.