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Finding the Fourth Proportional to 1,992.64, 2,994 and 1,262.56

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Solution

The fourth proportional to 1,992.64, 2,994 and 1,262.56 is: 1,897.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.64 : 2,994 = 1,262.56 : x
  2. Step 2: Convert to fraction form
    1,992.64/2,994 = 1,262.56/x
  3. Step 3: Cross multiply
    1,992.64x = 2,994 × 1,262.56
  4. Step 4: Simplify right side
    1,992.64x = 3,780,104.64
  5. Step 5: Solve for x
    x = 3,780,104.64/1,992.64
  6. Step 6: Final answer
    x = 1,897.03

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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.