Home / 1,983.13-2,736.69-1,143.52

Finding the Fourth Proportional to 1,983.13, 2,736.69 and 1,143.52

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Solution

The fourth proportional to 1,983.13, 2,736.69 and 1,143.52 is: 1,578.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.13 : 2,736.69 = 1,143.52 : x
  2. Step 2: Convert to fraction form
    1,983.13/2,736.69 = 1,143.52/x
  3. Step 3: Cross multiply
    1,983.13x = 2,736.69 × 1,143.52
  4. Step 4: Simplify right side
    1,983.13x = 3,129,459.75
  5. Step 5: Solve for x
    x = 3,129,459.75/1,983.13
  6. Step 6: Final answer
    x = 1,578.04

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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.