Home / 1,940.11-2,908.08-1,282.45

Finding the Fourth Proportional to 1,940.11, 2,908.08 and 1,282.45

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Solution

The fourth proportional to 1,940.11, 2,908.08 and 1,282.45 is: 1,922.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.11 : 2,908.08 = 1,282.45 : x
  2. Step 2: Convert to fraction form
    1,940.11/2,908.08 = 1,282.45/x
  3. Step 3: Cross multiply
    1,940.11x = 2,908.08 × 1,282.45
  4. Step 4: Simplify right side
    1,940.11x = 3,729,467.20
  5. Step 5: Solve for x
    x = 3,729,467.20/1,940.11
  6. Step 6: Final answer
    x = 1,922.30

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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.