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Finding the Fourth Proportional to 1,863.22, 2,793.97 and 1,113.07

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Solution

The fourth proportional to 1,863.22, 2,793.97 and 1,113.07 is: 1,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.22 : 2,793.97 = 1,113.07 : x
  2. Step 2: Convert to fraction form
    1,863.22/2,793.97 = 1,113.07/x
  3. Step 3: Cross multiply
    1,863.22x = 2,793.97 × 1,113.07
  4. Step 4: Simplify right side
    1,863.22x = 3,109,890.46
  5. Step 5: Solve for x
    x = 3,109,890.46/1,863.22
  6. Step 6: Final answer
    x = 1,669.10

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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.