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Finding the Fourth Proportional to 1,961.32, 2,942.02 and 1,847.18

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Solution

The fourth proportional to 1,961.32, 2,942.02 and 1,847.18 is: 2,770.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.32 : 2,942.02 = 1,847.18 : x
  2. Step 2: Convert to fraction form
    1,961.32/2,942.02 = 1,847.18/x
  3. Step 3: Cross multiply
    1,961.32x = 2,942.02 × 1,847.18
  4. Step 4: Simplify right side
    1,961.32x = 5,434,440.50
  5. Step 5: Solve for x
    x = 5,434,440.50/1,961.32
  6. Step 6: Final answer
    x = 2,770.81

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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.