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Finding the Fourth Proportional to 3,096.43, 4,273.86 and 1,916.87

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Solution

The fourth proportional to 3,096.43, 4,273.86 and 1,916.87 is: 2,645.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,096.43 : 4,273.86 = 1,916.87 : x
  2. Step 2: Convert to fraction form
    3,096.43/4,273.86 = 1,916.87/x
  3. Step 3: Cross multiply
    3,096.43x = 4,273.86 × 1,916.87
  4. Step 4: Simplify right side
    3,096.43x = 8,192,419.84
  5. Step 5: Solve for x
    x = 8,192,419.84/3,096.43
  6. Step 6: Final answer
    x = 2,645.77

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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.