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Finding the Fourth Proportional to 2,797.79, 3,861.14 and 1,851.95

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Solution

The fourth proportional to 2,797.79, 3,861.14 and 1,851.95 is: 2,555.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,797.79 : 3,861.14 = 1,851.95 : x
  2. Step 2: Convert to fraction form
    2,797.79/3,861.14 = 1,851.95/x
  3. Step 3: Cross multiply
    2,797.79x = 3,861.14 × 1,851.95
  4. Step 4: Simplify right side
    2,797.79x = 7,150,647.88
  5. Step 5: Solve for x
    x = 7,150,647.88/2,797.79
  6. Step 6: Final answer
    x = 2,555.82

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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.