Home / 3,965.10-5,470.01-2,786.85

Finding the Fourth Proportional to 3,965.10, 5,470.01 and 2,786.85

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Solution

The fourth proportional to 3,965.10, 5,470.01 and 2,786.85 is: 3,844.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.10 : 5,470.01 = 2,786.85 : x
  2. Step 2: Convert to fraction form
    3,965.10/5,470.01 = 2,786.85/x
  3. Step 3: Cross multiply
    3,965.10x = 5,470.01 × 2,786.85
  4. Step 4: Simplify right side
    3,965.10x = 15,244,083.43
  5. Step 5: Solve for x
    x = 15,244,083.43/3,965.10
  6. Step 6: Final answer
    x = 3,844.56

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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.