Home / 3,176.96-4,383.66-1,999.60

Finding the Fourth Proportional to 3,176.96, 4,383.66 and 1,999.60

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Solution

The fourth proportional to 3,176.96, 4,383.66 and 1,999.60 is: 2,759.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.96 : 4,383.66 = 1,999.60 : x
  2. Step 2: Convert to fraction form
    3,176.96/4,383.66 = 1,999.60/x
  3. Step 3: Cross multiply
    3,176.96x = 4,383.66 × 1,999.60
  4. Step 4: Simplify right side
    3,176.96x = 8,765,566.54
  5. Step 5: Solve for x
    x = 8,765,566.54/3,176.96
  6. Step 6: Final answer
    x = 2,759.11

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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.