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Finding the Fourth Proportional to 3,208.56, 4,804.50 and 2,749.28

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Solution

The fourth proportional to 3,208.56, 4,804.50 and 2,749.28 is: 4,116.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.56 : 4,804.50 = 2,749.28 : x
  2. Step 2: Convert to fraction form
    3,208.56/4,804.50 = 2,749.28/x
  3. Step 3: Cross multiply
    3,208.56x = 4,804.50 × 2,749.28
  4. Step 4: Simplify right side
    3,208.56x = 13,208,915.76
  5. Step 5: Solve for x
    x = 13,208,915.76/3,208.56
  6. Step 6: Final answer
    x = 4,116.77

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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.