Home / 3,765.27-5,195.79-2,170.79

Finding the Fourth Proportional to 3,765.27, 5,195.79 and 2,170.79

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Solution

The fourth proportional to 3,765.27, 5,195.79 and 2,170.79 is: 2,995.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.27 : 5,195.79 = 2,170.79 : x
  2. Step 2: Convert to fraction form
    3,765.27/5,195.79 = 2,170.79/x
  3. Step 3: Cross multiply
    3,765.27x = 5,195.79 × 2,170.79
  4. Step 4: Simplify right side
    3,765.27x = 11,278,943.00
  5. Step 5: Solve for x
    x = 11,278,943.00/3,765.27
  6. Step 6: Final answer
    x = 2,995.52

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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.