Home / 7,919.63-11,879.45-3,644.94

Finding the Fourth Proportional to 7,919.63, 11,879.45 and 3,644.94

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Solution

The fourth proportional to 7,919.63, 11,879.45 and 3,644.94 is: 5,467.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.63 : 11,879.45 = 3,644.94 : x
  2. Step 2: Convert to fraction form
    7,919.63/11,879.45 = 3,644.94/x
  3. Step 3: Cross multiply
    7,919.63x = 11,879.45 × 3,644.94
  4. Step 4: Simplify right side
    7,919.63x = 43,299,891.60
  5. Step 5: Solve for x
    x = 43,299,891.60/7,919.63
  6. Step 6: Final answer
    x = 5,467.41

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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.