Home / 7,946.16-11,917.80-2,680.44

Finding the Fourth Proportional to 7,946.16, 11,917.80 and 2,680.44

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Solution

The fourth proportional to 7,946.16, 11,917.80 and 2,680.44 is: 4,020.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,946.16 : 11,917.80 = 2,680.44 : x
  2. Step 2: Convert to fraction form
    7,946.16/11,917.80 = 2,680.44/x
  3. Step 3: Cross multiply
    7,946.16x = 11,917.80 × 2,680.44
  4. Step 4: Simplify right side
    7,946.16x = 31,944,947.83
  5. Step 5: Solve for x
    x = 31,944,947.83/7,946.16
  6. Step 6: Final answer
    x = 4,020.17

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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.