Home / 1,983.08-2,731.11-1,940.02

Finding the Fourth Proportional to 1,983.08, 2,731.11 and 1,940.02

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Solution

The fourth proportional to 1,983.08, 2,731.11 and 1,940.02 is: 2,671.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.08 : 2,731.11 = 1,940.02 : x
  2. Step 2: Convert to fraction form
    1,983.08/2,731.11 = 1,940.02/x
  3. Step 3: Cross multiply
    1,983.08x = 2,731.11 × 1,940.02
  4. Step 4: Simplify right side
    1,983.08x = 5,298,398.30
  5. Step 5: Solve for x
    x = 5,298,398.30/1,983.08
  6. Step 6: Final answer
    x = 2,671.81

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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.