Home / 3,438.92-5,146.97-3,131.48

Finding the Fourth Proportional to 3,438.92, 5,146.97 and 3,131.48

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Solution

The fourth proportional to 3,438.92, 5,146.97 and 3,131.48 is: 4,686.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.92 : 5,146.97 = 3,131.48 : x
  2. Step 2: Convert to fraction form
    3,438.92/5,146.97 = 3,131.48/x
  3. Step 3: Cross multiply
    3,438.92x = 5,146.97 × 3,131.48
  4. Step 4: Simplify right side
    3,438.92x = 16,117,592.22
  5. Step 5: Solve for x
    x = 16,117,592.22/3,438.92
  6. Step 6: Final answer
    x = 4,686.82

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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.