Home / 3,186.93-4,779.67-1,211.85

Finding the Fourth Proportional to 3,186.93, 4,779.67 and 1,211.85

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Solution

The fourth proportional to 3,186.93, 4,779.67 and 1,211.85 is: 1,817.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.93 : 4,779.67 = 1,211.85 : x
  2. Step 2: Convert to fraction form
    3,186.93/4,779.67 = 1,211.85/x
  3. Step 3: Cross multiply
    3,186.93x = 4,779.67 × 1,211.85
  4. Step 4: Simplify right side
    3,186.93x = 5,792,243.09
  5. Step 5: Solve for x
    x = 5,792,243.09/3,186.93
  6. Step 6: Final answer
    x = 1,817.50

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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.