Home / 3,270.15-4,512.29-2,151.54

Finding the Fourth Proportional to 3,270.15, 4,512.29 and 2,151.54

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Solution

The fourth proportional to 3,270.15, 4,512.29 and 2,151.54 is: 2,968.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.15 : 4,512.29 = 2,151.54 : x
  2. Step 2: Convert to fraction form
    3,270.15/4,512.29 = 2,151.54/x
  3. Step 3: Cross multiply
    3,270.15x = 4,512.29 × 2,151.54
  4. Step 4: Simplify right side
    3,270.15x = 9,708,361.67
  5. Step 5: Solve for x
    x = 9,708,361.67/3,270.15
  6. Step 6: Final answer
    x = 2,968.78

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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.