Home / 1,983.79-2,979.94-1,204.18

Finding the Fourth Proportional to 1,983.79, 2,979.94 and 1,204.18

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Solution

The fourth proportional to 1,983.79, 2,979.94 and 1,204.18 is: 1,808.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.79 : 2,979.94 = 1,204.18 : x
  2. Step 2: Convert to fraction form
    1,983.79/2,979.94 = 1,204.18/x
  3. Step 3: Cross multiply
    1,983.79x = 2,979.94 × 1,204.18
  4. Step 4: Simplify right side
    1,983.79x = 3,588,380.14
  5. Step 5: Solve for x
    x = 3,588,380.14/1,983.79
  6. Step 6: Final answer
    x = 1,808.85

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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.