Home / 3,136.25-4,272.75-3,072.23

Finding the Fourth Proportional to 3,136.25, 4,272.75 and 3,072.23

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Solution

The fourth proportional to 3,136.25, 4,272.75 and 3,072.23 is: 4,185.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.25 : 4,272.75 = 3,072.23 : x
  2. Step 2: Convert to fraction form
    3,136.25/4,272.75 = 3,072.23/x
  3. Step 3: Cross multiply
    3,136.25x = 4,272.75 × 3,072.23
  4. Step 4: Simplify right side
    3,136.25x = 13,126,865.39
  5. Step 5: Solve for x
    x = 13,126,865.39/3,136.25
  6. Step 6: Final answer
    x = 4,185.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.