Home / 3,967.85-5,475.20-2,199.02

Finding the Fourth Proportional to 3,967.85, 5,475.20 and 2,199.02

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Solution

The fourth proportional to 3,967.85, 5,475.20 and 2,199.02 is: 3,034.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.85 : 5,475.20 = 2,199.02 : x
  2. Step 2: Convert to fraction form
    3,967.85/5,475.20 = 2,199.02/x
  3. Step 3: Cross multiply
    3,967.85x = 5,475.20 × 2,199.02
  4. Step 4: Simplify right side
    3,967.85x = 12,040,035.93
  5. Step 5: Solve for x
    x = 12,040,035.93/3,967.85
  6. Step 6: Final answer
    x = 3,034.40

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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.