Home / 2,126.07-3,189.51-827.44

Finding the Fourth Proportional to 2,126.07, 3,189.51 and 827.44

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Solution

The fourth proportional to 2,126.07, 3,189.51 and 827.44 is: 1,241.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.07 : 3,189.51 = 827.44 : x
  2. Step 2: Convert to fraction form
    2,126.07/3,189.51 = 827.44/x
  3. Step 3: Cross multiply
    2,126.07x = 3,189.51 × 827.44
  4. Step 4: Simplify right side
    2,126.07x = 2,639,120.18
  5. Step 5: Solve for x
    x = 2,639,120.18/2,126.07
  6. Step 6: Final answer
    x = 1,241.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.