Home / 1,983.42-2,736.93-1,143.96

Finding the Fourth Proportional to 1,983.42, 2,736.93 and 1,143.96

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Solution

The fourth proportional to 1,983.42, 2,736.93 and 1,143.96 is: 1,578.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.42 : 2,736.93 = 1,143.96 : x
  2. Step 2: Convert to fraction form
    1,983.42/2,736.93 = 1,143.96/x
  3. Step 3: Cross multiply
    1,983.42x = 2,736.93 × 1,143.96
  4. Step 4: Simplify right side
    1,983.42x = 3,130,938.44
  5. Step 5: Solve for x
    x = 3,130,938.44/1,983.42
  6. Step 6: Final answer
    x = 1,578.56

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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.