Home / 7,919.25-11,881.71-2,725.53

Finding the Fourth Proportional to 7,919.25, 11,881.71 and 2,725.53

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Solution

The fourth proportional to 7,919.25, 11,881.71 and 2,725.53 is: 4,089.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.25 : 11,881.71 = 2,725.53 : x
  2. Step 2: Convert to fraction form
    7,919.25/11,881.71 = 2,725.53/x
  3. Step 3: Cross multiply
    7,919.25x = 11,881.71 × 2,725.53
  4. Step 4: Simplify right side
    7,919.25x = 32,383,957.06
  5. Step 5: Solve for x
    x = 32,383,957.06/7,919.25
  6. Step 6: Final answer
    x = 4,089.27

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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.