Home / 3,431.97-4,734.84-2,172.54

Finding the Fourth Proportional to 3,431.97, 4,734.84 and 2,172.54

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Solution

The fourth proportional to 3,431.97, 4,734.84 and 2,172.54 is: 2,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.97 : 4,734.84 = 2,172.54 : x
  2. Step 2: Convert to fraction form
    3,431.97/4,734.84 = 2,172.54/x
  3. Step 3: Cross multiply
    3,431.97x = 4,734.84 × 2,172.54
  4. Step 4: Simplify right side
    3,431.97x = 10,286,629.29
  5. Step 5: Solve for x
    x = 10,286,629.29/3,431.97
  6. Step 6: Final answer
    x = 2,997.30

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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.