Home / 3,432.45-5,145.07-2,112.73

Finding the Fourth Proportional to 3,432.45, 5,145.07 and 2,112.73

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Solution

The fourth proportional to 3,432.45, 5,145.07 and 2,112.73 is: 3,166.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.45 : 5,145.07 = 2,112.73 : x
  2. Step 2: Convert to fraction form
    3,432.45/5,145.07 = 2,112.73/x
  3. Step 3: Cross multiply
    3,432.45x = 5,145.07 × 2,112.73
  4. Step 4: Simplify right side
    3,432.45x = 10,870,158.50
  5. Step 5: Solve for x
    x = 10,870,158.50/3,432.45
  6. Step 6: Final answer
    x = 3,166.88

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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.