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Finding the Fourth Proportional to 5,183.18, 7,773.09 and 1,719.50

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Solution

The fourth proportional to 5,183.18, 7,773.09 and 1,719.50 is: 2,578.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183.18 : 7,773.09 = 1,719.50 : x
  2. Step 2: Convert to fraction form
    5,183.18/7,773.09 = 1,719.50/x
  3. Step 3: Cross multiply
    5,183.18x = 7,773.09 × 1,719.50
  4. Step 4: Simplify right side
    5,183.18x = 13,365,828.26
  5. Step 5: Solve for x
    x = 13,365,828.26/5,183.18
  6. Step 6: Final answer
    x = 2,578.69

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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.