Home / 7,879.46-11,815.56-2,330.82

Finding the Fourth Proportional to 7,879.46, 11,815.56 and 2,330.82

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Solution

The fourth proportional to 7,879.46, 11,815.56 and 2,330.82 is: 3,495.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.46 : 11,815.56 = 2,330.82 : x
  2. Step 2: Convert to fraction form
    7,879.46/11,815.56 = 2,330.82/x
  3. Step 3: Cross multiply
    7,879.46x = 11,815.56 × 2,330.82
  4. Step 4: Simplify right side
    7,879.46x = 27,539,943.56
  5. Step 5: Solve for x
    x = 27,539,943.56/7,879.46
  6. Step 6: Final answer
    x = 3,495.16

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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.