Home / 3,439.15-4,747.22-2,112.97

Finding the Fourth Proportional to 3,439.15, 4,747.22 and 2,112.97

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Solution

The fourth proportional to 3,439.15, 4,747.22 and 2,112.97 is: 2,916.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.15 : 4,747.22 = 2,112.97 : x
  2. Step 2: Convert to fraction form
    3,439.15/4,747.22 = 2,112.97/x
  3. Step 3: Cross multiply
    3,439.15x = 4,747.22 × 2,112.97
  4. Step 4: Simplify right side
    3,439.15x = 10,030,733.44
  5. Step 5: Solve for x
    x = 10,030,733.44/3,439.15
  6. Step 6: Final answer
    x = 2,916.63

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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.