Home / 3,684.67-5,083.70-2,091.20

Finding the Fourth Proportional to 3,684.67, 5,083.70 and 2,091.20

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Solution

The fourth proportional to 3,684.67, 5,083.70 and 2,091.20 is: 2,885.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,684.67 : 5,083.70 = 2,091.20 : x
  2. Step 2: Convert to fraction form
    3,684.67/5,083.70 = 2,091.20/x
  3. Step 3: Cross multiply
    3,684.67x = 5,083.70 × 2,091.20
  4. Step 4: Simplify right side
    3,684.67x = 10,631,033.44
  5. Step 5: Solve for x
    x = 10,631,033.44/3,684.67
  6. Step 6: Final answer
    x = 2,885.21

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1.5x scale

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.