Home / 6,919.83-10,380.84-2,540.43

Finding the Fourth Proportional to 6,919.83, 10,380.84 and 2,540.43

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Solution

The fourth proportional to 6,919.83, 10,380.84 and 2,540.43 is: 3,811.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.83 : 10,380.84 = 2,540.43 : x
  2. Step 2: Convert to fraction form
    6,919.83/10,380.84 = 2,540.43/x
  3. Step 3: Cross multiply
    6,919.83x = 10,380.84 × 2,540.43
  4. Step 4: Simplify right side
    6,919.83x = 26,371,797.36
  5. Step 5: Solve for x
    x = 26,371,797.36/6,919.83
  6. Step 6: Final answer
    x = 3,811.05

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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.