Home / 7,786.37-11,672.61-2,854.86

Finding the Fourth Proportional to 7,786.37, 11,672.61 and 2,854.86

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Solution

The fourth proportional to 7,786.37, 11,672.61 and 2,854.86 is: 4,279.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.37 : 11,672.61 = 2,854.86 : x
  2. Step 2: Convert to fraction form
    7,786.37/11,672.61 = 2,854.86/x
  3. Step 3: Cross multiply
    7,786.37x = 11,672.61 × 2,854.86
  4. Step 4: Simplify right side
    7,786.37x = 33,323,612.91
  5. Step 5: Solve for x
    x = 33,323,612.91/7,786.37
  6. Step 6: Final answer
    x = 4,279.74

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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.