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Finding the Fourth Proportional to 5,456.79, 8,185.19 and 2,168.19

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Solution

The fourth proportional to 5,456.79, 8,185.19 and 2,168.19 is: 3,252.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.79 : 8,185.19 = 2,168.19 : x
  2. Step 2: Convert to fraction form
    5,456.79/8,185.19 = 2,168.19/x
  3. Step 3: Cross multiply
    5,456.79x = 8,185.19 × 2,168.19
  4. Step 4: Simplify right side
    5,456.79x = 17,747,036.27
  5. Step 5: Solve for x
    x = 17,747,036.27/5,456.79
  6. Step 6: Final answer
    x = 3,252.29

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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.