Home / 7,418.91-11,128.34-3,036.37

Finding the Fourth Proportional to 7,418.91, 11,128.34 and 3,036.37

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Solution

The fourth proportional to 7,418.91, 11,128.34 and 3,036.37 is: 4,554.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.91 : 11,128.34 = 3,036.37 : x
  2. Step 2: Convert to fraction form
    7,418.91/11,128.34 = 3,036.37/x
  3. Step 3: Cross multiply
    7,418.91x = 11,128.34 × 3,036.37
  4. Step 4: Simplify right side
    7,418.91x = 33,789,757.73
  5. Step 5: Solve for x
    x = 33,789,757.73/7,418.91
  6. Step 6: Final answer
    x = 4,554.54

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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.