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Finding the Fourth Proportional to 2,902.73, 4,353.69 and 822.92

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Solution

The fourth proportional to 2,902.73, 4,353.69 and 822.92 is: 1,234.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,902.73 : 4,353.69 = 822.92 : x
  2. Step 2: Convert to fraction form
    2,902.73/4,353.69 = 822.92/x
  3. Step 3: Cross multiply
    2,902.73x = 4,353.69 × 822.92
  4. Step 4: Simplify right side
    2,902.73x = 3,582,716.81
  5. Step 5: Solve for x
    x = 3,582,716.81/2,902.73
  6. Step 6: Final answer
    x = 1,234.26

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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.