Home / 3,967.20-5,474.78-2,198.84

Finding the Fourth Proportional to 3,967.20, 5,474.78 and 2,198.84

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Solution

The fourth proportional to 3,967.20, 5,474.78 and 2,198.84 is: 3,034.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.20 : 5,474.78 = 2,198.84 : x
  2. Step 2: Convert to fraction form
    3,967.20/5,474.78 = 2,198.84/x
  3. Step 3: Cross multiply
    3,967.20x = 5,474.78 × 2,198.84
  4. Step 4: Simplify right side
    3,967.20x = 12,038,165.26
  5. Step 5: Solve for x
    x = 12,038,165.26/3,967.20
  6. Step 6: Final answer
    x = 3,034.42

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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.