Home / 3,916.84-5,868.96-2,680.06

Finding the Fourth Proportional to 3,916.84, 5,868.96 and 2,680.06

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Solution

The fourth proportional to 3,916.84, 5,868.96 and 2,680.06 is: 4,015.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.84 : 5,868.96 = 2,680.06 : x
  2. Step 2: Convert to fraction form
    3,916.84/5,868.96 = 2,680.06/x
  3. Step 3: Cross multiply
    3,916.84x = 5,868.96 × 2,680.06
  4. Step 4: Simplify right side
    3,916.84x = 15,729,164.94
  5. Step 5: Solve for x
    x = 15,729,164.94/3,916.84
  6. Step 6: Final answer
    x = 4,015.78

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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.