Home / 5,170.92-7,136.02-3,180.34

Finding the Fourth Proportional to 5,170.92, 7,136.02 and 3,180.34

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Solution

The fourth proportional to 5,170.92, 7,136.02 and 3,180.34 is: 4,388.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.92 : 7,136.02 = 3,180.34 : x
  2. Step 2: Convert to fraction form
    5,170.92/7,136.02 = 3,180.34/x
  3. Step 3: Cross multiply
    5,170.92x = 7,136.02 × 3,180.34
  4. Step 4: Simplify right side
    5,170.92x = 22,694,969.85
  5. Step 5: Solve for x
    x = 22,694,969.85/5,170.92
  6. Step 6: Final answer
    x = 4,388.96

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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.