Home / 2,939.62-4,403.31-1,765.90

Finding the Fourth Proportional to 2,939.62, 4,403.31 and 1,765.90

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Solution

The fourth proportional to 2,939.62, 4,403.31 and 1,765.90 is: 2,645.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.62 : 4,403.31 = 1,765.90 : x
  2. Step 2: Convert to fraction form
    2,939.62/4,403.31 = 1,765.90/x
  3. Step 3: Cross multiply
    2,939.62x = 4,403.31 × 1,765.90
  4. Step 4: Simplify right side
    2,939.62x = 7,775,805.13
  5. Step 5: Solve for x
    x = 7,775,805.13/2,939.62
  6. Step 6: Final answer
    x = 2,645.17

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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.