Home / 3,778.72-5,669.70-2,132.80

Finding the Fourth Proportional to 3,778.72, 5,669.70 and 2,132.80

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Solution

The fourth proportional to 3,778.72, 5,669.70 and 2,132.80 is: 3,200.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.72 : 5,669.70 = 2,132.80 : x
  2. Step 2: Convert to fraction form
    3,778.72/5,669.70 = 2,132.80/x
  3. Step 3: Cross multiply
    3,778.72x = 5,669.70 × 2,132.80
  4. Step 4: Simplify right side
    3,778.72x = 12,092,336.16
  5. Step 5: Solve for x
    x = 12,092,336.16/3,778.72
  6. Step 6: Final answer
    x = 3,200.11

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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.