Home / 3,968.16-5,475.92-2,199.94

Finding the Fourth Proportional to 3,968.16, 5,475.92 and 2,199.94

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Solution

The fourth proportional to 3,968.16, 5,475.92 and 2,199.94 is: 3,035.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.16 : 5,475.92 = 2,199.94 : x
  2. Step 2: Convert to fraction form
    3,968.16/5,475.92 = 2,199.94/x
  3. Step 3: Cross multiply
    3,968.16x = 5,475.92 × 2,199.94
  4. Step 4: Simplify right side
    3,968.16x = 12,046,695.44
  5. Step 5: Solve for x
    x = 12,046,695.44/3,968.16
  6. Step 6: Final answer
    x = 3,035.84

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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.