Home / 4,131.80-5,694.19-2,805.56

Finding the Fourth Proportional to 4,131.80, 5,694.19 and 2,805.56

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Solution

The fourth proportional to 4,131.80, 5,694.19 and 2,805.56 is: 3,866.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,131.80 : 5,694.19 = 2,805.56 : x
  2. Step 2: Convert to fraction form
    4,131.80/5,694.19 = 2,805.56/x
  3. Step 3: Cross multiply
    4,131.80x = 5,694.19 × 2,805.56
  4. Step 4: Simplify right side
    4,131.80x = 15,975,356.21
  5. Step 5: Solve for x
    x = 15,975,356.21/4,131.80
  6. Step 6: Final answer
    x = 3,866.44

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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.