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Finding the Fourth Proportional to 4,986.05, 6,880.19 and 2,861.01

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Solution

The fourth proportional to 4,986.05, 6,880.19 and 2,861.01 is: 3,947.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.05 : 6,880.19 = 2,861.01 : x
  2. Step 2: Convert to fraction form
    4,986.05/6,880.19 = 2,861.01/x
  3. Step 3: Cross multiply
    4,986.05x = 6,880.19 × 2,861.01
  4. Step 4: Simplify right side
    4,986.05x = 19,684,278.09
  5. Step 5: Solve for x
    x = 19,684,278.09/4,986.05
  6. Step 6: Final answer
    x = 3,947.87

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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.