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Finding the Fourth Proportional to 1,953.39, 2,930.55 and 799.14

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Solution

The fourth proportional to 1,953.39, 2,930.55 and 799.14 is: 1,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953.39 : 2,930.55 = 799.14 : x
  2. Step 2: Convert to fraction form
    1,953.39/2,930.55 = 799.14/x
  3. Step 3: Cross multiply
    1,953.39x = 2,930.55 × 799.14
  4. Step 4: Simplify right side
    1,953.39x = 2,341,919.73
  5. Step 5: Solve for x
    x = 2,341,919.73/1,953.39
  6. Step 6: Final answer
    x = 1,198.90

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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.