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Finding the Fourth Proportional to 5,360.86, 7,391.09 and 3,469.09

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Solution

The fourth proportional to 5,360.86, 7,391.09 and 3,469.09 is: 4,782.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,360.86 : 7,391.09 = 3,469.09 : x
  2. Step 2: Convert to fraction form
    5,360.86/7,391.09 = 3,469.09/x
  3. Step 3: Cross multiply
    5,360.86x = 7,391.09 × 3,469.09
  4. Step 4: Simplify right side
    5,360.86x = 25,640,339.06
  5. Step 5: Solve for x
    x = 25,640,339.06/5,360.86
  6. Step 6: Final answer
    x = 4,782.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.