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Finding the Fourth Proportional to 1,644.35, 2,466.92 and 548.79

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Solution

The fourth proportional to 1,644.35, 2,466.92 and 548.79 is: 823.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644.35 : 2,466.92 = 548.79 : x
  2. Step 2: Convert to fraction form
    1,644.35/2,466.92 = 548.79/x
  3. Step 3: Cross multiply
    1,644.35x = 2,466.92 × 548.79
  4. Step 4: Simplify right side
    1,644.35x = 1,353,823.94
  5. Step 5: Solve for x
    x = 1,353,823.94/1,644.35
  6. Step 6: Final answer
    x = 823.32

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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.