Home / 5,456.54-8,185.69-2,169.66

Finding the Fourth Proportional to 5,456.54, 8,185.69 and 2,169.66

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Solution

The fourth proportional to 5,456.54, 8,185.69 and 2,169.66 is: 3,254.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.54 : 8,185.69 = 2,169.66 : x
  2. Step 2: Convert to fraction form
    5,456.54/8,185.69 = 2,169.66/x
  3. Step 3: Cross multiply
    5,456.54x = 8,185.69 × 2,169.66
  4. Step 4: Simplify right side
    5,456.54x = 17,760,164.17
  5. Step 5: Solve for x
    x = 17,760,164.17/5,456.54
  6. Step 6: Final answer
    x = 3,254.84

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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.