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Finding the Fourth Proportional to 2,722.30, 4,083.45 and 873.43

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Solution

The fourth proportional to 2,722.30, 4,083.45 and 873.43 is: 1,310.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.30 : 4,083.45 = 873.43 : x
  2. Step 2: Convert to fraction form
    2,722.30/4,083.45 = 873.43/x
  3. Step 3: Cross multiply
    2,722.30x = 4,083.45 × 873.43
  4. Step 4: Simplify right side
    2,722.30x = 3,566,607.73
  5. Step 5: Solve for x
    x = 3,566,607.73/2,722.30
  6. Step 6: Final answer
    x = 1,310.15

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1.5x scale

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.