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Finding the Fourth Proportional to 3,068.72, 4,604.16 and 1,338.56

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Solution

The fourth proportional to 3,068.72, 4,604.16 and 1,338.56 is: 2,008.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,068.72 : 4,604.16 = 1,338.56 : x
  2. Step 2: Convert to fraction form
    3,068.72/4,604.16 = 1,338.56/x
  3. Step 3: Cross multiply
    3,068.72x = 4,604.16 × 1,338.56
  4. Step 4: Simplify right side
    3,068.72x = 6,162,944.41
  5. Step 5: Solve for x
    x = 6,162,944.41/3,068.72
  6. Step 6: Final answer
    x = 2,008.31

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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.