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Finding the Fourth Proportional to 1,262.96, 1,894.44 and 397.27

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Solution

The fourth proportional to 1,262.96, 1,894.44 and 397.27 is: 595.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262.96 : 1,894.44 = 397.27 : x
  2. Step 2: Convert to fraction form
    1,262.96/1,894.44 = 397.27/x
  3. Step 3: Cross multiply
    1,262.96x = 1,894.44 × 397.27
  4. Step 4: Simplify right side
    1,262.96x = 752,599.44
  5. Step 5: Solve for x
    x = 752,599.44/1,262.96
  6. Step 6: Final answer
    x = 595.90

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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.