Home / 3,136.62-4,318.68-2,663.58

Finding the Fourth Proportional to 3,136.62, 4,318.68 and 2,663.58

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Solution

The fourth proportional to 3,136.62, 4,318.68 and 2,663.58 is: 3,667.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.62 : 4,318.68 = 2,663.58 : x
  2. Step 2: Convert to fraction form
    3,136.62/4,318.68 = 2,663.58/x
  3. Step 3: Cross multiply
    3,136.62x = 4,318.68 × 2,663.58
  4. Step 4: Simplify right side
    3,136.62x = 11,503,149.67
  5. Step 5: Solve for x
    x = 11,503,149.67/3,136.62
  6. Step 6: Final answer
    x = 3,667.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.