Home / 7,625.20-11,416.80-3,919.44

Finding the Fourth Proportional to 7,625.20, 11,416.80 and 3,919.44

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Solution

The fourth proportional to 7,625.20, 11,416.80 and 3,919.44 is: 5,868.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,625.20 : 11,416.80 = 3,919.44 : x
  2. Step 2: Convert to fraction form
    7,625.20/11,416.80 = 3,919.44/x
  3. Step 3: Cross multiply
    7,625.20x = 11,416.80 × 3,919.44
  4. Step 4: Simplify right side
    7,625.20x = 44,747,462.59
  5. Step 5: Solve for x
    x = 44,747,462.59/7,625.20
  6. Step 6: Final answer
    x = 5,868.37

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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.