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Finding the Fourth Proportional to 3,257, 4,493.50 and 1,930.42

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Solution

The fourth proportional to 3,257, 4,493.50 and 1,930.42 is: 2,663.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,257 : 4,493.50 = 1,930.42 : x
  2. Step 2: Convert to fraction form
    3,257/4,493.50 = 1,930.42/x
  3. Step 3: Cross multiply
    3,257x = 4,493.50 × 1,930.42
  4. Step 4: Simplify right side
    3,257x = 8,674,342.27
  5. Step 5: Solve for x
    x = 8,674,342.27/3,257
  6. Step 6: Final answer
    x = 2,663.29

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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.