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Finding the Fourth Proportional to 5,579.93, 8,369.49 and 1,419.96

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Solution

The fourth proportional to 5,579.93, 8,369.49 and 1,419.96 is: 2,129.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.93 : 8,369.49 = 1,419.96 : x
  2. Step 2: Convert to fraction form
    5,579.93/8,369.49 = 1,419.96/x
  3. Step 3: Cross multiply
    5,579.93x = 8,369.49 × 1,419.96
  4. Step 4: Simplify right side
    5,579.93x = 11,884,301.12
  5. Step 5: Solve for x
    x = 11,884,301.12/5,579.93
  6. Step 6: Final answer
    x = 2,129.83

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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.