Home / 7,858.26-11,785.89-2,311.86

Finding the Fourth Proportional to 7,858.26, 11,785.89 and 2,311.86

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Solution

The fourth proportional to 7,858.26, 11,785.89 and 2,311.86 is: 3,467.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858.26 : 11,785.89 = 2,311.86 : x
  2. Step 2: Convert to fraction form
    7,858.26/11,785.89 = 2,311.86/x
  3. Step 3: Cross multiply
    7,858.26x = 11,785.89 × 2,311.86
  4. Step 4: Simplify right side
    7,858.26x = 27,247,327.66
  5. Step 5: Solve for x
    x = 27,247,327.66/7,858.26
  6. Step 6: Final answer
    x = 3,467.35

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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.