Home / 1,942.22-2,918.10-1,249.16

Finding the Fourth Proportional to 1,942.22, 2,918.10 and 1,249.16

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Solution

The fourth proportional to 1,942.22, 2,918.10 and 1,249.16 is: 1,876.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.22 : 2,918.10 = 1,249.16 : x
  2. Step 2: Convert to fraction form
    1,942.22/2,918.10 = 1,249.16/x
  3. Step 3: Cross multiply
    1,942.22x = 2,918.10 × 1,249.16
  4. Step 4: Simplify right side
    1,942.22x = 3,645,173.80
  5. Step 5: Solve for x
    x = 3,645,173.80/1,942.22
  6. Step 6: Final answer
    x = 1,876.81

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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.