Home / 4,112.71-6,169.97-1,920.24

Finding the Fourth Proportional to 4,112.71, 6,169.97 and 1,920.24

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Solution

The fourth proportional to 4,112.71, 6,169.97 and 1,920.24 is: 2,880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,112.71 : 6,169.97 = 1,920.24 : x
  2. Step 2: Convert to fraction form
    4,112.71/6,169.97 = 1,920.24/x
  3. Step 3: Cross multiply
    4,112.71x = 6,169.97 × 1,920.24
  4. Step 4: Simplify right side
    4,112.71x = 11,847,827.99
  5. Step 5: Solve for x
    x = 11,847,827.99/4,112.71
  6. Step 6: Final answer
    x = 2,880.79

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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.