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Finding the Fourth Proportional to 1,994.76, 2,992.52 and 608.22

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Solution

The fourth proportional to 1,994.76, 2,992.52 and 608.22 is: 912.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.76 : 2,992.52 = 608.22 : x
  2. Step 2: Convert to fraction form
    1,994.76/2,992.52 = 608.22/x
  3. Step 3: Cross multiply
    1,994.76x = 2,992.52 × 608.22
  4. Step 4: Simplify right side
    1,994.76x = 1,820,107.47
  5. Step 5: Solve for x
    x = 1,820,107.47/1,994.76
  6. Step 6: Final answer
    x = 912.44

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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.