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Finding the Fourth Proportional to 1,608.48, 2,406.24 and 1,409.76

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Solution

The fourth proportional to 1,608.48, 2,406.24 and 1,409.76 is: 2,108.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.48 : 2,406.24 = 1,409.76 : x
  2. Step 2: Convert to fraction form
    1,608.48/2,406.24 = 1,409.76/x
  3. Step 3: Cross multiply
    1,608.48x = 2,406.24 × 1,409.76
  4. Step 4: Simplify right side
    1,608.48x = 3,392,220.90
  5. Step 5: Solve for x
    x = 3,392,220.90/1,608.48
  6. Step 6: Final answer
    x = 2,108.96

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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.