Home / 7,890.09-11,836.35-2,694.75

Finding the Fourth Proportional to 7,890.09, 11,836.35 and 2,694.75

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Solution

The fourth proportional to 7,890.09, 11,836.35 and 2,694.75 is: 4,042.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.09 : 11,836.35 = 2,694.75 : x
  2. Step 2: Convert to fraction form
    7,890.09/11,836.35 = 2,694.75/x
  3. Step 3: Cross multiply
    7,890.09x = 11,836.35 × 2,694.75
  4. Step 4: Simplify right side
    7,890.09x = 31,896,004.16
  5. Step 5: Solve for x
    x = 31,896,004.16/7,890.09
  6. Step 6: Final answer
    x = 4,042.54

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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.