Home / 7,910.25-11,856.19-2,976.74

Finding the Fourth Proportional to 7,910.25, 11,856.19 and 2,976.74

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Solution

The fourth proportional to 7,910.25, 11,856.19 and 2,976.74 is: 4,461.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910.25 : 11,856.19 = 2,976.74 : x
  2. Step 2: Convert to fraction form
    7,910.25/11,856.19 = 2,976.74/x
  3. Step 3: Cross multiply
    7,910.25x = 11,856.19 × 2,976.74
  4. Step 4: Simplify right side
    7,910.25x = 35,292,780.14
  5. Step 5: Solve for x
    x = 35,292,780.14/7,910.25
  6. Step 6: Final answer
    x = 4,461.65

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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.