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Finding the Fourth Proportional to 1,942.82, 2,914.25 and 626.77

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Solution

The fourth proportional to 1,942.82, 2,914.25 and 626.77 is: 940.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.82 : 2,914.25 = 626.77 : x
  2. Step 2: Convert to fraction form
    1,942.82/2,914.25 = 626.77/x
  3. Step 3: Cross multiply
    1,942.82x = 2,914.25 × 626.77
  4. Step 4: Simplify right side
    1,942.82x = 1,826,564.98
  5. Step 5: Solve for x
    x = 1,826,564.98/1,942.82
  6. Step 6: Final answer
    x = 940.16

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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.