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Finding the Fourth Proportional to 2,797.79, 3,861.41 and 2,133.41

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Solution

The fourth proportional to 2,797.79, 3,861.41 and 2,133.41 is: 2,944.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,797.79 : 3,861.41 = 2,133.41 : x
  2. Step 2: Convert to fraction form
    2,797.79/3,861.41 = 2,133.41/x
  3. Step 3: Cross multiply
    2,797.79x = 3,861.41 × 2,133.41
  4. Step 4: Simplify right side
    2,797.79x = 8,237,940.73
  5. Step 5: Solve for x
    x = 8,237,940.73/2,797.79
  6. Step 6: Final answer
    x = 2,944.45

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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.