Home / 3,137.67-4,331.86-1,960.34

Finding the Fourth Proportional to 3,137.67, 4,331.86 and 1,960.34

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Solution

The fourth proportional to 3,137.67, 4,331.86 and 1,960.34 is: 2,706.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.67 : 4,331.86 = 1,960.34 : x
  2. Step 2: Convert to fraction form
    3,137.67/4,331.86 = 1,960.34/x
  3. Step 3: Cross multiply
    3,137.67x = 4,331.86 × 1,960.34
  4. Step 4: Simplify right side
    3,137.67x = 8,491,891.87
  5. Step 5: Solve for x
    x = 8,491,891.87/3,137.67
  6. Step 6: Final answer
    x = 2,706.43

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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.