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Finding the Fourth Proportional to 1,994.73, 2,990.60 and 1,376.67

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Solution

The fourth proportional to 1,994.73, 2,990.60 and 1,376.67 is: 2,063.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.73 : 2,990.60 = 1,376.67 : x
  2. Step 2: Convert to fraction form
    1,994.73/2,990.60 = 1,376.67/x
  3. Step 3: Cross multiply
    1,994.73x = 2,990.60 × 1,376.67
  4. Step 4: Simplify right side
    1,994.73x = 4,117,047.47
  5. Step 5: Solve for x
    x = 4,117,047.47/1,994.73
  6. Step 6: Final answer
    x = 2,063.97

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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.