Home / 2,799.86-4,194.92-1,965.15

Finding the Fourth Proportional to 2,799.86, 4,194.92 and 1,965.15

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Solution

The fourth proportional to 2,799.86, 4,194.92 and 1,965.15 is: 2,944.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.86 : 4,194.92 = 1,965.15 : x
  2. Step 2: Convert to fraction form
    2,799.86/4,194.92 = 1,965.15/x
  3. Step 3: Cross multiply
    2,799.86x = 4,194.92 × 1,965.15
  4. Step 4: Simplify right side
    2,799.86x = 8,243,647.04
  5. Step 5: Solve for x
    x = 8,243,647.04/2,799.86
  6. Step 6: Final answer
    x = 2,944.31

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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.