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Finding the Fourth Proportional to 5,610.87, 8,410.23 and 2,321.87

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Solution

The fourth proportional to 5,610.87, 8,410.23 and 2,321.87 is: 3,480.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,610.87 : 8,410.23 = 2,321.87 : x
  2. Step 2: Convert to fraction form
    5,610.87/8,410.23 = 2,321.87/x
  3. Step 3: Cross multiply
    5,610.87x = 8,410.23 × 2,321.87
  4. Step 4: Simplify right side
    5,610.87x = 19,527,418.68
  5. Step 5: Solve for x
    x = 19,527,418.68/5,610.87
  6. Step 6: Final answer
    x = 3,480.28

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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.