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Finding the Fourth Proportional to 6,711.77, 9,262.28 and 3,879.26

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Solution

The fourth proportional to 6,711.77, 9,262.28 and 3,879.26 is: 5,353.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,711.77 : 9,262.28 = 3,879.26 : x
  2. Step 2: Convert to fraction form
    6,711.77/9,262.28 = 3,879.26/x
  3. Step 3: Cross multiply
    6,711.77x = 9,262.28 × 3,879.26
  4. Step 4: Simplify right side
    6,711.77x = 35,930,792.31
  5. Step 5: Solve for x
    x = 35,930,792.31/6,711.77
  6. Step 6: Final answer
    x = 5,353.40

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Half scale
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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.