Home / 3,136.64-4,318.72-2,663.56

Finding the Fourth Proportional to 3,136.64, 4,318.72 and 2,663.56

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Solution

The fourth proportional to 3,136.64, 4,318.72 and 2,663.56 is: 3,667.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.64 : 4,318.72 = 2,663.56 : x
  2. Step 2: Convert to fraction form
    3,136.64/4,318.72 = 2,663.56/x
  3. Step 3: Cross multiply
    3,136.64x = 4,318.72 × 2,663.56
  4. Step 4: Simplify right side
    3,136.64x = 11,503,169.84
  5. Step 5: Solve for x
    x = 11,503,169.84/3,136.64
  6. Step 6: Final answer
    x = 3,667.35

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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.