Home / 2,849.64-3,930.98-1,965.88

Finding the Fourth Proportional to 2,849.64, 3,930.98 and 1,965.88

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Solution

The fourth proportional to 2,849.64, 3,930.98 and 1,965.88 is: 2,711.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,849.64 : 3,930.98 = 1,965.88 : x
  2. Step 2: Convert to fraction form
    2,849.64/3,930.98 = 1,965.88/x
  3. Step 3: Cross multiply
    2,849.64x = 3,930.98 × 1,965.88
  4. Step 4: Simplify right side
    2,849.64x = 7,727,834.96
  5. Step 5: Solve for x
    x = 7,727,834.96/2,849.64
  6. Step 6: Final answer
    x = 2,711.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.