Home / 7,620.81-11,431.44-2,693.85

Finding the Fourth Proportional to 7,620.81, 11,431.44 and 2,693.85

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Solution

The fourth proportional to 7,620.81, 11,431.44 and 2,693.85 is: 4,040.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.81 : 11,431.44 = 2,693.85 : x
  2. Step 2: Convert to fraction form
    7,620.81/11,431.44 = 2,693.85/x
  3. Step 3: Cross multiply
    7,620.81x = 11,431.44 × 2,693.85
  4. Step 4: Simplify right side
    7,620.81x = 30,794,584.64
  5. Step 5: Solve for x
    x = 30,794,584.64/7,620.81
  6. Step 6: Final answer
    x = 4,040.85

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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.