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Finding the Fourth Proportional to 5,015.37, 6,919.62 and 2,919.09

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Solution

The fourth proportional to 5,015.37, 6,919.62 and 2,919.09 is: 4,027.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.37 : 6,919.62 = 2,919.09 : x
  2. Step 2: Convert to fraction form
    5,015.37/6,919.62 = 2,919.09/x
  3. Step 3: Cross multiply
    5,015.37x = 6,919.62 × 2,919.09
  4. Step 4: Simplify right side
    5,015.37x = 20,198,993.55
  5. Step 5: Solve for x
    x = 20,198,993.55/5,015.37
  6. Step 6: Final answer
    x = 4,027.42

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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.