Home / 5,231.38-7,847.58-1,719.96

Finding the Fourth Proportional to 5,231.38, 7,847.58 and 1,719.96

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Solution

The fourth proportional to 5,231.38, 7,847.58 and 1,719.96 is: 2,580.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.38 : 7,847.58 = 1,719.96 : x
  2. Step 2: Convert to fraction form
    5,231.38/7,847.58 = 1,719.96/x
  3. Step 3: Cross multiply
    5,231.38x = 7,847.58 × 1,719.96
  4. Step 4: Simplify right side
    5,231.38x = 13,497,499.78
  5. Step 5: Solve for x
    x = 13,497,499.78/5,231.38
  6. Step 6: Final answer
    x = 2,580.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.