Home / 1,983.29-2,736.79-1,086.95

Finding the Fourth Proportional to 1,983.29, 2,736.79 and 1,086.95

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Solution

The fourth proportional to 1,983.29, 2,736.79 and 1,086.95 is: 1,499.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.29 : 2,736.79 = 1,086.95 : x
  2. Step 2: Convert to fraction form
    1,983.29/2,736.79 = 1,086.95/x
  3. Step 3: Cross multiply
    1,983.29x = 2,736.79 × 1,086.95
  4. Step 4: Simplify right side
    1,983.29x = 2,974,758.02
  5. Step 5: Solve for x
    x = 2,974,758.02/1,983.29
  6. Step 6: Final answer
    x = 1,499.91

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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.