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Finding the Fourth Proportional to 5,709.96, 8,563.92 and 1,815.24

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Solution

The fourth proportional to 5,709.96, 8,563.92 and 1,815.24 is: 2,722.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,709.96 : 8,563.92 = 1,815.24 : x
  2. Step 2: Convert to fraction form
    5,709.96/8,563.92 = 1,815.24/x
  3. Step 3: Cross multiply
    5,709.96x = 8,563.92 × 1,815.24
  4. Step 4: Simplify right side
    5,709.96x = 15,545,570.14
  5. Step 5: Solve for x
    x = 15,545,570.14/5,709.96
  6. Step 6: Final answer
    x = 2,722.54

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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.