Home / 3,029.78-4,172.44-2,728.46

Finding the Fourth Proportional to 3,029.78, 4,172.44 and 2,728.46

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Solution

The fourth proportional to 3,029.78, 4,172.44 and 2,728.46 is: 3,757.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,029.78 : 4,172.44 = 2,728.46 : x
  2. Step 2: Convert to fraction form
    3,029.78/4,172.44 = 2,728.46/x
  3. Step 3: Cross multiply
    3,029.78x = 4,172.44 × 2,728.46
  4. Step 4: Simplify right side
    3,029.78x = 11,384,335.64
  5. Step 5: Solve for x
    x = 11,384,335.64/3,029.78
  6. Step 6: Final answer
    x = 3,757.48

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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.