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Finding the Fourth Proportional to 3,540.44, 4,885.98 and 1,968.50

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Solution

The fourth proportional to 3,540.44, 4,885.98 and 1,968.50 is: 2,716.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.44 : 4,885.98 = 1,968.50 : x
  2. Step 2: Convert to fraction form
    3,540.44/4,885.98 = 1,968.50/x
  3. Step 3: Cross multiply
    3,540.44x = 4,885.98 × 1,968.50
  4. Step 4: Simplify right side
    3,540.44x = 9,618,051.63
  5. Step 5: Solve for x
    x = 9,618,051.63/3,540.44
  6. Step 6: Final answer
    x = 2,716.63

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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.