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Finding the Fourth Proportional to 2,997.54, 4,135.64 and 1,670.99

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Solution

The fourth proportional to 2,997.54, 4,135.64 and 1,670.99 is: 2,305.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.54 : 4,135.64 = 1,670.99 : x
  2. Step 2: Convert to fraction form
    2,997.54/4,135.64 = 1,670.99/x
  3. Step 3: Cross multiply
    2,997.54x = 4,135.64 × 1,670.99
  4. Step 4: Simplify right side
    2,997.54x = 6,910,584.05
  5. Step 5: Solve for x
    x = 6,910,584.05/2,997.54
  6. Step 6: Final answer
    x = 2,305.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.