Home / 1,949.42-2,689.62-1,163.36

Finding the Fourth Proportional to 1,949.42, 2,689.62 and 1,163.36

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Solution

The fourth proportional to 1,949.42, 2,689.62 and 1,163.36 is: 1,605.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.42 : 2,689.62 = 1,163.36 : x
  2. Step 2: Convert to fraction form
    1,949.42/2,689.62 = 1,163.36/x
  3. Step 3: Cross multiply
    1,949.42x = 2,689.62 × 1,163.36
  4. Step 4: Simplify right side
    1,949.42x = 3,128,996.32
  5. Step 5: Solve for x
    x = 3,128,996.32/1,949.42
  6. Step 6: Final answer
    x = 1,605.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.