Home / 3,091.67-4,636.36-2,166.75

Finding the Fourth Proportional to 3,091.67, 4,636.36 and 2,166.75

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Solution

The fourth proportional to 3,091.67, 4,636.36 and 2,166.75 is: 3,249.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.67 : 4,636.36 = 2,166.75 : x
  2. Step 2: Convert to fraction form
    3,091.67/4,636.36 = 2,166.75/x
  3. Step 3: Cross multiply
    3,091.67x = 4,636.36 × 2,166.75
  4. Step 4: Simplify right side
    3,091.67x = 10,045,827.61
  5. Step 5: Solve for x
    x = 10,045,827.61/3,091.67
  6. Step 6: Final answer
    x = 3,249.33

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1.5x scale

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.