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Finding the Fourth Proportional to 6,409.23, 8,843.22 and 3,891.27

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Solution

The fourth proportional to 6,409.23, 8,843.22 and 3,891.27 is: 5,369.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409.23 : 8,843.22 = 3,891.27 : x
  2. Step 2: Convert to fraction form
    6,409.23/8,843.22 = 3,891.27/x
  3. Step 3: Cross multiply
    6,409.23x = 8,843.22 × 3,891.27
  4. Step 4: Simplify right side
    6,409.23x = 34,411,356.69
  5. Step 5: Solve for x
    x = 34,411,356.69/6,409.23
  6. Step 6: Final answer
    x = 5,369.03

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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.