Home / 7,571.90-11,359.38-2,640.22

Finding the Fourth Proportional to 7,571.90, 11,359.38 and 2,640.22

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Solution

The fourth proportional to 7,571.90, 11,359.38 and 2,640.22 is: 3,960.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,571.90 : 11,359.38 = 2,640.22 : x
  2. Step 2: Convert to fraction form
    7,571.90/11,359.38 = 2,640.22/x
  3. Step 3: Cross multiply
    7,571.90x = 11,359.38 × 2,640.22
  4. Step 4: Simplify right side
    7,571.90x = 29,991,262.26
  5. Step 5: Solve for x
    x = 29,991,262.26/7,571.90
  6. Step 6: Final answer
    x = 3,960.86

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1.5x scale

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.