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Finding the Fourth Proportional to 2,873.41, 4,310.21 and 1,118.54

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Solution

The fourth proportional to 2,873.41, 4,310.21 and 1,118.54 is: 1,677.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.41 : 4,310.21 = 1,118.54 : x
  2. Step 2: Convert to fraction form
    2,873.41/4,310.21 = 1,118.54/x
  3. Step 3: Cross multiply
    2,873.41x = 4,310.21 × 1,118.54
  4. Step 4: Simplify right side
    2,873.41x = 4,821,155.87
  5. Step 5: Solve for x
    x = 4,821,155.87/2,873.41
  6. Step 6: Final answer
    x = 1,677.85

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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.