Home / 7,653.88-11,479.30-2,105.79

Finding the Fourth Proportional to 7,653.88, 11,479.30 and 2,105.79

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Solution

The fourth proportional to 7,653.88, 11,479.30 and 2,105.79 is: 3,158.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,653.88 : 11,479.30 = 2,105.79 : x
  2. Step 2: Convert to fraction form
    7,653.88/11,479.30 = 2,105.79/x
  3. Step 3: Cross multiply
    7,653.88x = 11,479.30 × 2,105.79
  4. Step 4: Simplify right side
    7,653.88x = 24,172,995.15
  5. Step 5: Solve for x
    x = 24,172,995.15/7,653.88
  6. Step 6: Final answer
    x = 3,158.27

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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.