Home / 3,136.18-4,704.34-827.68

Finding the Fourth Proportional to 3,136.18, 4,704.34 and 827.68

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Solution

The fourth proportional to 3,136.18, 4,704.34 and 827.68 is: 1,241.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.18 : 4,704.34 = 827.68 : x
  2. Step 2: Convert to fraction form
    3,136.18/4,704.34 = 827.68/x
  3. Step 3: Cross multiply
    3,136.18x = 4,704.34 × 827.68
  4. Step 4: Simplify right side
    3,136.18x = 3,893,688.13
  5. Step 5: Solve for x
    x = 3,893,688.13/3,136.18
  6. Step 6: Final answer
    x = 1,241.54

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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.