Home / 3,769.96-5,203.08-3,139.60

Finding the Fourth Proportional to 3,769.96, 5,203.08 and 3,139.60

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Solution

The fourth proportional to 3,769.96, 5,203.08 and 3,139.60 is: 4,333.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,769.96 : 5,203.08 = 3,139.60 : x
  2. Step 2: Convert to fraction form
    3,769.96/5,203.08 = 3,139.60/x
  3. Step 3: Cross multiply
    3,769.96x = 5,203.08 × 3,139.60
  4. Step 4: Simplify right side
    3,769.96x = 16,335,589.97
  5. Step 5: Solve for x
    x = 16,335,589.97/3,769.96
  6. Step 6: Final answer
    x = 4,333.09

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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.