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Finding the Fourth Proportional to 2,930.63, 4,396.41 and 982.44

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Solution

The fourth proportional to 2,930.63, 4,396.41 and 982.44 is: 1,473.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.63 : 4,396.41 = 982.44 : x
  2. Step 2: Convert to fraction form
    2,930.63/4,396.41 = 982.44/x
  3. Step 3: Cross multiply
    2,930.63x = 4,396.41 × 982.44
  4. Step 4: Simplify right side
    2,930.63x = 4,319,209.04
  5. Step 5: Solve for x
    x = 4,319,209.04/2,930.63
  6. Step 6: Final answer
    x = 1,473.82

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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.