Home / 3,086.43-4,259.94-1,967.12

Finding the Fourth Proportional to 3,086.43, 4,259.94 and 1,967.12

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Solution

The fourth proportional to 3,086.43, 4,259.94 and 1,967.12 is: 2,715.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.43 : 4,259.94 = 1,967.12 : x
  2. Step 2: Convert to fraction form
    3,086.43/4,259.94 = 1,967.12/x
  3. Step 3: Cross multiply
    3,086.43x = 4,259.94 × 1,967.12
  4. Step 4: Simplify right side
    3,086.43x = 8,379,791.87
  5. Step 5: Solve for x
    x = 8,379,791.87/3,086.43
  6. Step 6: Final answer
    x = 2,715.04

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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.