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Finding the Fourth Proportional to 2,311.94, 3,468.20 and 852.11

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Solution

The fourth proportional to 2,311.94, 3,468.20 and 852.11 is: 1,278.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.94 : 3,468.20 = 852.11 : x
  2. Step 2: Convert to fraction form
    2,311.94/3,468.20 = 852.11/x
  3. Step 3: Cross multiply
    2,311.94x = 3,468.20 × 852.11
  4. Step 4: Simplify right side
    2,311.94x = 2,955,266.30
  5. Step 5: Solve for x
    x = 2,955,266.30/2,311.94
  6. Step 6: Final answer
    x = 1,278.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.