Home / 5,199.57-7,799.85-1,912.73

Finding the Fourth Proportional to 5,199.57, 7,799.85 and 1,912.73

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Solution

The fourth proportional to 5,199.57, 7,799.85 and 1,912.73 is: 2,869.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.57 : 7,799.85 = 1,912.73 : x
  2. Step 2: Convert to fraction form
    5,199.57/7,799.85 = 1,912.73/x
  3. Step 3: Cross multiply
    5,199.57x = 7,799.85 × 1,912.73
  4. Step 4: Simplify right side
    5,199.57x = 14,918,968.09
  5. Step 5: Solve for x
    x = 14,918,968.09/5,199.57
  6. Step 6: Final answer
    x = 2,869.27

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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.