Home / 3,935.96-5,912.14-3,320.86

Finding the Fourth Proportional to 3,935.96, 5,912.14 and 3,320.86

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Solution

The fourth proportional to 3,935.96, 5,912.14 and 3,320.86 is: 4,988.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.96 : 5,912.14 = 3,320.86 : x
  2. Step 2: Convert to fraction form
    3,935.96/5,912.14 = 3,320.86/x
  3. Step 3: Cross multiply
    3,935.96x = 5,912.14 × 3,320.86
  4. Step 4: Simplify right side
    3,935.96x = 19,633,389.24
  5. Step 5: Solve for x
    x = 19,633,389.24/3,935.96
  6. Step 6: Final answer
    x = 4,988.21

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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.