Home / 5,655.81-8,469.09-3,906.21

Finding the Fourth Proportional to 5,655.81, 8,469.09 and 3,906.21

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Solution

The fourth proportional to 5,655.81, 8,469.09 and 3,906.21 is: 5,849.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,655.81 : 8,469.09 = 3,906.21 : x
  2. Step 2: Convert to fraction form
    5,655.81/8,469.09 = 3,906.21/x
  3. Step 3: Cross multiply
    5,655.81x = 8,469.09 × 3,906.21
  4. Step 4: Simplify right side
    5,655.81x = 33,082,044.05
  5. Step 5: Solve for x
    x = 33,082,044.05/5,655.81
  6. Step 6: Final answer
    x = 5,849.21

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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.