Home / 3,965.80-5,949.78-1,333.76

Finding the Fourth Proportional to 3,965.80, 5,949.78 and 1,333.76

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Solution

The fourth proportional to 3,965.80, 5,949.78 and 1,333.76 is: 2,001.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.80 : 5,949.78 = 1,333.76 : x
  2. Step 2: Convert to fraction form
    3,965.80/5,949.78 = 1,333.76/x
  3. Step 3: Cross multiply
    3,965.80x = 5,949.78 × 1,333.76
  4. Step 4: Simplify right side
    3,965.80x = 7,935,578.57
  5. Step 5: Solve for x
    x = 7,935,578.57/3,965.80
  6. Step 6: Final answer
    x = 2,001.00

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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.