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Finding the Fourth Proportional to 1,962.11, 2,940.12 and 1,550.22

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Solution

The fourth proportional to 1,962.11, 2,940.12 and 1,550.22 is: 2,322.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.11 : 2,940.12 = 1,550.22 : x
  2. Step 2: Convert to fraction form
    1,962.11/2,940.12 = 1,550.22/x
  3. Step 3: Cross multiply
    1,962.11x = 2,940.12 × 1,550.22
  4. Step 4: Simplify right side
    1,962.11x = 4,557,832.83
  5. Step 5: Solve for x
    x = 4,557,832.83/1,962.11
  6. Step 6: Final answer
    x = 2,322.92

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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.