Home / 3,692.84-5,096.76-2,121.92

Finding the Fourth Proportional to 3,692.84, 5,096.76 and 2,121.92

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Solution

The fourth proportional to 3,692.84, 5,096.76 and 2,121.92 is: 2,928.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,692.84 : 5,096.76 = 2,121.92 : x
  2. Step 2: Convert to fraction form
    3,692.84/5,096.76 = 2,121.92/x
  3. Step 3: Cross multiply
    3,692.84x = 5,096.76 × 2,121.92
  4. Step 4: Simplify right side
    3,692.84x = 10,814,916.98
  5. Step 5: Solve for x
    x = 10,814,916.98/3,692.84
  6. Step 6: Final answer
    x = 2,928.62

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Why These Related Problems?

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