Home / 3,968.28-5,476.41-2,199.87

Finding the Fourth Proportional to 3,968.28, 5,476.41 and 2,199.87

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Solution

The fourth proportional to 3,968.28, 5,476.41 and 2,199.87 is: 3,035.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.28 : 5,476.41 = 2,199.87 : x
  2. Step 2: Convert to fraction form
    3,968.28/5,476.41 = 2,199.87/x
  3. Step 3: Cross multiply
    3,968.28x = 5,476.41 × 2,199.87
  4. Step 4: Simplify right side
    3,968.28x = 12,047,390.07
  5. Step 5: Solve for x
    x = 12,047,390.07/3,968.28
  6. Step 6: Final answer
    x = 3,035.92

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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.