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Finding the Fourth Proportional to 5,200.29, 7,795.81 and 1,912.62

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Solution

The fourth proportional to 5,200.29, 7,795.81 and 1,912.62 is: 2,867.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,200.29 : 7,795.81 = 1,912.62 : x
  2. Step 2: Convert to fraction form
    5,200.29/7,795.81 = 1,912.62/x
  3. Step 3: Cross multiply
    5,200.29x = 7,795.81 × 1,912.62
  4. Step 4: Simplify right side
    5,200.29x = 14,910,422.12
  5. Step 5: Solve for x
    x = 14,910,422.12/5,200.29
  6. Step 6: Final answer
    x = 2,867.23

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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.