Home / 4,112.91-6,169.43-1,339.57

Finding the Fourth Proportional to 4,112.91, 6,169.43 and 1,339.57

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Solution

The fourth proportional to 4,112.91, 6,169.43 and 1,339.57 is: 2,009.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,112.91 : 6,169.43 = 1,339.57 : x
  2. Step 2: Convert to fraction form
    4,112.91/6,169.43 = 1,339.57/x
  3. Step 3: Cross multiply
    4,112.91x = 6,169.43 × 1,339.57
  4. Step 4: Simplify right side
    4,112.91x = 8,264,383.35
  5. Step 5: Solve for x
    x = 8,264,383.35/4,112.91
  6. Step 6: Final answer
    x = 2,009.38

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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.