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Finding the Fourth Proportional to 5,229.78, 7,844.05 and 1,941.99

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Solution

The fourth proportional to 5,229.78, 7,844.05 and 1,941.99 is: 2,912.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.78 : 7,844.05 = 1,941.99 : x
  2. Step 2: Convert to fraction form
    5,229.78/7,844.05 = 1,941.99/x
  3. Step 3: Cross multiply
    5,229.78x = 7,844.05 × 1,941.99
  4. Step 4: Simplify right side
    5,229.78x = 15,233,039.67
  5. Step 5: Solve for x
    x = 15,233,039.67/5,229.78
  6. Step 6: Final answer
    x = 2,912.75

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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.