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Finding the Fourth Proportional to 2,571.54, 3,859.45 and 2,409.54

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Solution

The fourth proportional to 2,571.54, 3,859.45 and 2,409.54 is: 3,616.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,571.54 : 3,859.45 = 2,409.54 : x
  2. Step 2: Convert to fraction form
    2,571.54/3,859.45 = 2,409.54/x
  3. Step 3: Cross multiply
    2,571.54x = 3,859.45 × 2,409.54
  4. Step 4: Simplify right side
    2,571.54x = 9,299,499.15
  5. Step 5: Solve for x
    x = 9,299,499.15/2,571.54
  6. Step 6: Final answer
    x = 3,616.32

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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.