Home / 1,983.14-2,736.99-1,143.89

Finding the Fourth Proportional to 1,983.14, 2,736.99 and 1,143.89

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Solution

The fourth proportional to 1,983.14, 2,736.99 and 1,143.89 is: 1,578.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.14 : 2,736.99 = 1,143.89 : x
  2. Step 2: Convert to fraction form
    1,983.14/2,736.99 = 1,143.89/x
  3. Step 3: Cross multiply
    1,983.14x = 2,736.99 × 1,143.89
  4. Step 4: Simplify right side
    1,983.14x = 3,130,815.49
  5. Step 5: Solve for x
    x = 3,130,815.49/1,983.14
  6. Step 6: Final answer
    x = 1,578.72

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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.