Home / 5,474.66-8,211.78-2,185.45

Finding the Fourth Proportional to 5,474.66, 8,211.78 and 2,185.45

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Solution

The fourth proportional to 5,474.66, 8,211.78 and 2,185.45 is: 3,278.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474.66 : 8,211.78 = 2,185.45 : x
  2. Step 2: Convert to fraction form
    5,474.66/8,211.78 = 2,185.45/x
  3. Step 3: Cross multiply
    5,474.66x = 8,211.78 × 2,185.45
  4. Step 4: Simplify right side
    5,474.66x = 17,946,414.07
  5. Step 5: Solve for x
    x = 17,946,414.07/5,474.66
  6. Step 6: Final answer
    x = 3,278.09

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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.