Home / 3,086.70-4,261.23-1,908.42

Finding the Fourth Proportional to 3,086.70, 4,261.23 and 1,908.42

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Solution

The fourth proportional to 3,086.70, 4,261.23 and 1,908.42 is: 2,634.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.70 : 4,261.23 = 1,908.42 : x
  2. Step 2: Convert to fraction form
    3,086.70/4,261.23 = 1,908.42/x
  3. Step 3: Cross multiply
    3,086.70x = 4,261.23 × 1,908.42
  4. Step 4: Simplify right side
    3,086.70x = 8,132,216.56
  5. Step 5: Solve for x
    x = 8,132,216.56/3,086.70
  6. Step 6: Final answer
    x = 2,634.60

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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.