Home / 3,771.36-5,199.36-3,180.86

Finding the Fourth Proportional to 3,771.36, 5,199.36 and 3,180.86

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Solution

The fourth proportional to 3,771.36, 5,199.36 and 3,180.86 is: 4,385.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.36 : 5,199.36 = 3,180.86 : x
  2. Step 2: Convert to fraction form
    3,771.36/5,199.36 = 3,180.86/x
  3. Step 3: Cross multiply
    3,771.36x = 5,199.36 × 3,180.86
  4. Step 4: Simplify right side
    3,771.36x = 16,538,436.25
  5. Step 5: Solve for x
    x = 16,538,436.25/3,771.36
  6. Step 6: Final answer
    x = 4,385.27

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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.