Home / 7,418.93-11,128.41-2,488.59

Finding the Fourth Proportional to 7,418.93, 11,128.41 and 2,488.59

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Solution

The fourth proportional to 7,418.93, 11,128.41 and 2,488.59 is: 3,732.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.93 : 11,128.41 = 2,488.59 : x
  2. Step 2: Convert to fraction form
    7,418.93/11,128.41 = 2,488.59/x
  3. Step 3: Cross multiply
    7,418.93x = 11,128.41 × 2,488.59
  4. Step 4: Simplify right side
    7,418.93x = 27,694,049.84
  5. Step 5: Solve for x
    x = 27,694,049.84/7,418.93
  6. Step 6: Final answer
    x = 3,732.89

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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.