Home / 7,858.91-11,786.54-2,310.77

Finding the Fourth Proportional to 7,858.91, 11,786.54 and 2,310.77

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Solution

The fourth proportional to 7,858.91, 11,786.54 and 2,310.77 is: 3,465.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858.91 : 11,786.54 = 2,310.77 : x
  2. Step 2: Convert to fraction form
    7,858.91/11,786.54 = 2,310.77/x
  3. Step 3: Cross multiply
    7,858.91x = 11,786.54 × 2,310.77
  4. Step 4: Simplify right side
    7,858.91x = 27,236,000.95
  5. Step 5: Solve for x
    x = 27,236,000.95/7,858.91
  6. Step 6: Final answer
    x = 3,465.62

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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.