Home / 3,967.70-5,475.75-2,199.83

Finding the Fourth Proportional to 3,967.70, 5,475.75 and 2,199.83

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Solution

The fourth proportional to 3,967.70, 5,475.75 and 2,199.83 is: 3,035.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.70 : 5,475.75 = 2,199.83 : x
  2. Step 2: Convert to fraction form
    3,967.70/5,475.75 = 2,199.83/x
  3. Step 3: Cross multiply
    3,967.70x = 5,475.75 × 2,199.83
  4. Step 4: Simplify right side
    3,967.70x = 12,045,719.12
  5. Step 5: Solve for x
    x = 12,045,719.12/3,967.70
  6. Step 6: Final answer
    x = 3,035.95

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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.