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Finding the Fourth Proportional to 3,486.65, 4,811.00 and 1,994.42

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Solution

The fourth proportional to 3,486.65, 4,811.00 and 1,994.42 is: 2,751.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.65 : 4,811.00 = 1,994.42 : x
  2. Step 2: Convert to fraction form
    3,486.65/4,811.00 = 1,994.42/x
  3. Step 3: Cross multiply
    3,486.65x = 4,811.00 × 1,994.42
  4. Step 4: Simplify right side
    3,486.65x = 9,595,156.68
  5. Step 5: Solve for x
    x = 9,595,156.68/3,486.65
  6. Step 6: Final answer
    x = 2,751.97

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.