Home / 4,186.77-5,771.56-3,190.30

Finding the Fourth Proportional to 4,186.77, 5,771.56 and 3,190.30

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Solution

The fourth proportional to 4,186.77, 5,771.56 and 3,190.30 is: 4,397.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,186.77 : 5,771.56 = 3,190.30 : x
  2. Step 2: Convert to fraction form
    4,186.77/5,771.56 = 3,190.30/x
  3. Step 3: Cross multiply
    4,186.77x = 5,771.56 × 3,190.30
  4. Step 4: Simplify right side
    4,186.77x = 18,413,007.87
  5. Step 5: Solve for x
    x = 18,413,007.87/4,186.77
  6. Step 6: Final answer
    x = 4,397.90

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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.