Home / 3,096.27-4,274.79-2,151.78

Finding the Fourth Proportional to 3,096.27, 4,274.79 and 2,151.78

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Solution

The fourth proportional to 3,096.27, 4,274.79 and 2,151.78 is: 2,970.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,096.27 : 4,274.79 = 2,151.78 : x
  2. Step 2: Convert to fraction form
    3,096.27/4,274.79 = 2,151.78/x
  3. Step 3: Cross multiply
    3,096.27x = 4,274.79 × 2,151.78
  4. Step 4: Simplify right side
    3,096.27x = 9,198,407.63
  5. Step 5: Solve for x
    x = 9,198,407.63/3,096.27
  6. Step 6: Final answer
    x = 2,970.80

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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.