Home / 7,790.26-11,687.81-2,792.68

Finding the Fourth Proportional to 7,790.26, 11,687.81 and 2,792.68

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Solution

The fourth proportional to 7,790.26, 11,687.81 and 2,792.68 is: 4,189.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.26 : 11,687.81 = 2,792.68 : x
  2. Step 2: Convert to fraction form
    7,790.26/11,687.81 = 2,792.68/x
  3. Step 3: Cross multiply
    7,790.26x = 11,687.81 × 2,792.68
  4. Step 4: Simplify right side
    7,790.26x = 32,640,313.23
  5. Step 5: Solve for x
    x = 32,640,313.23/7,790.26
  6. Step 6: Final answer
    x = 4,189.89

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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.