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Finding the Fourth Proportional to 7,824.50, 10,797.83 and 4,239.49

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Solution

The fourth proportional to 7,824.50, 10,797.83 and 4,239.49 is: 5,850.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,824.50 : 10,797.83 = 4,239.49 : x
  2. Step 2: Convert to fraction form
    7,824.50/10,797.83 = 4,239.49/x
  3. Step 3: Cross multiply
    7,824.50x = 10,797.83 × 4,239.49
  4. Step 4: Simplify right side
    7,824.50x = 45,777,292.31
  5. Step 5: Solve for x
    x = 45,777,292.31/7,824.50
  6. Step 6: Final answer
    x = 5,850.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.