Home / 7,272.78-10,905.52-3,110.79

Finding the Fourth Proportional to 7,272.78, 10,905.52 and 3,110.79

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Solution

The fourth proportional to 7,272.78, 10,905.52 and 3,110.79 is: 4,664.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.78 : 10,905.52 = 3,110.79 : x
  2. Step 2: Convert to fraction form
    7,272.78/10,905.52 = 3,110.79/x
  3. Step 3: Cross multiply
    7,272.78x = 10,905.52 × 3,110.79
  4. Step 4: Simplify right side
    7,272.78x = 33,924,782.56
  5. Step 5: Solve for x
    x = 33,924,782.56/7,272.78
  6. Step 6: Final answer
    x = 4,664.62

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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.