Home / 1,966.72-2,951.77-1,143.85

Finding the Fourth Proportional to 1,966.72, 2,951.77 and 1,143.85

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Solution

The fourth proportional to 1,966.72, 2,951.77 and 1,143.85 is: 1,716.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.72 : 2,951.77 = 1,143.85 : x
  2. Step 2: Convert to fraction form
    1,966.72/2,951.77 = 1,143.85/x
  3. Step 3: Cross multiply
    1,966.72x = 2,951.77 × 1,143.85
  4. Step 4: Simplify right side
    1,966.72x = 3,376,376.40
  5. Step 5: Solve for x
    x = 3,376,376.40/1,966.72
  6. Step 6: Final answer
    x = 1,716.76

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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.