Home / 4,136.40-6,192.90-3,213.60

Finding the Fourth Proportional to 4,136.40, 6,192.90 and 3,213.60

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Solution

The fourth proportional to 4,136.40, 6,192.90 and 3,213.60 is: 4,811.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,136.40 : 6,192.90 = 3,213.60 : x
  2. Step 2: Convert to fraction form
    4,136.40/6,192.90 = 3,213.60/x
  3. Step 3: Cross multiply
    4,136.40x = 6,192.90 × 3,213.60
  4. Step 4: Simplify right side
    4,136.40x = 19,901,503.44
  5. Step 5: Solve for x
    x = 19,901,503.44/4,136.40
  6. Step 6: Final answer
    x = 4,811.31

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1.5x scale

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.