Home / 1,940.14-2,908.18-844.21

Finding the Fourth Proportional to 1,940.14, 2,908.18 and 844.21

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Solution

The fourth proportional to 1,940.14, 2,908.18 and 844.21 is: 1,265.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.14 : 2,908.18 = 844.21 : x
  2. Step 2: Convert to fraction form
    1,940.14/2,908.18 = 844.21/x
  3. Step 3: Cross multiply
    1,940.14x = 2,908.18 × 844.21
  4. Step 4: Simplify right side
    1,940.14x = 2,455,114.64
  5. Step 5: Solve for x
    x = 2,455,114.64/1,940.14
  6. Step 6: Final answer
    x = 1,265.43

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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.