Home / 2,172.12-3,257.64-1,825.71

Finding the Fourth Proportional to 2,172.12, 3,257.64 and 1,825.71

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Solution

The fourth proportional to 2,172.12, 3,257.64 and 1,825.71 is: 2,738.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.12 : 3,257.64 = 1,825.71 : x
  2. Step 2: Convert to fraction form
    2,172.12/3,257.64 = 1,825.71/x
  3. Step 3: Cross multiply
    2,172.12x = 3,257.64 × 1,825.71
  4. Step 4: Simplify right side
    2,172.12x = 5,947,505.92
  5. Step 5: Solve for x
    x = 5,947,505.92/2,172.12
  6. Step 6: Final answer
    x = 2,738.11

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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.