Home / 7,828.58-11,729.66-3,874.56

Finding the Fourth Proportional to 7,828.58, 11,729.66 and 3,874.56

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Solution

The fourth proportional to 7,828.58, 11,729.66 and 3,874.56 is: 5,805.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.58 : 11,729.66 = 3,874.56 : x
  2. Step 2: Convert to fraction form
    7,828.58/11,729.66 = 3,874.56/x
  3. Step 3: Cross multiply
    7,828.58x = 11,729.66 × 3,874.56
  4. Step 4: Simplify right side
    7,828.58x = 45,447,252.08
  5. Step 5: Solve for x
    x = 45,447,252.08/7,828.58
  6. Step 6: Final answer
    x = 5,805.30

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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.