Home / 7,940.65-11,911.44-2,675.22

Finding the Fourth Proportional to 7,940.65, 11,911.44 and 2,675.22

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Solution

The fourth proportional to 7,940.65, 11,911.44 and 2,675.22 is: 4,012.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.65 : 11,911.44 = 2,675.22 : x
  2. Step 2: Convert to fraction form
    7,940.65/11,911.44 = 2,675.22/x
  3. Step 3: Cross multiply
    7,940.65x = 11,911.44 × 2,675.22
  4. Step 4: Simplify right side
    7,940.65x = 31,865,722.52
  5. Step 5: Solve for x
    x = 31,865,722.52/7,940.65
  6. Step 6: Final answer
    x = 4,012.99

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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.