Home / 1,940.33-2,907.66-1,207.68

Finding the Fourth Proportional to 1,940.33, 2,907.66 and 1,207.68

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Solution

The fourth proportional to 1,940.33, 2,907.66 and 1,207.68 is: 1,809.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.33 : 2,907.66 = 1,207.68 : x
  2. Step 2: Convert to fraction form
    1,940.33/2,907.66 = 1,207.68/x
  3. Step 3: Cross multiply
    1,940.33x = 2,907.66 × 1,207.68
  4. Step 4: Simplify right side
    1,940.33x = 3,511,522.83
  5. Step 5: Solve for x
    x = 3,511,522.83/1,940.33
  6. Step 6: Final answer
    x = 1,809.76

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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.