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Finding the Fourth Proportional to 2,896.56, 4,318.11 and 2,663.28

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Solution

The fourth proportional to 2,896.56, 4,318.11 and 2,663.28 is: 3,970.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,896.56 : 4,318.11 = 2,663.28 : x
  2. Step 2: Convert to fraction form
    2,896.56/4,318.11 = 2,663.28/x
  3. Step 3: Cross multiply
    2,896.56x = 4,318.11 × 2,663.28
  4. Step 4: Simplify right side
    2,896.56x = 11,500,336.00
  5. Step 5: Solve for x
    x = 11,500,336.00/2,896.56
  6. Step 6: Final answer
    x = 3,970.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.