Home / 3,784.80-5,222.68-2,106.04

Finding the Fourth Proportional to 3,784.80, 5,222.68 and 2,106.04

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Solution

The fourth proportional to 3,784.80, 5,222.68 and 2,106.04 is: 2,906.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.80 : 5,222.68 = 2,106.04 : x
  2. Step 2: Convert to fraction form
    3,784.80/5,222.68 = 2,106.04/x
  3. Step 3: Cross multiply
    3,784.80x = 5,222.68 × 2,106.04
  4. Step 4: Simplify right side
    3,784.80x = 10,999,172.99
  5. Step 5: Solve for x
    x = 10,999,172.99/3,784.80
  6. Step 6: Final answer
    x = 2,906.14

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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.