Home / 6,211.80-9,309.87-3,611.70

Finding the Fourth Proportional to 6,211.80, 9,309.87 and 3,611.70

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Solution

The fourth proportional to 6,211.80, 9,309.87 and 3,611.70 is: 5,413.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.80 : 9,309.87 = 3,611.70 : x
  2. Step 2: Convert to fraction form
    6,211.80/9,309.87 = 3,611.70/x
  3. Step 3: Cross multiply
    6,211.80x = 9,309.87 × 3,611.70
  4. Step 4: Simplify right side
    6,211.80x = 33,624,457.48
  5. Step 5: Solve for x
    x = 33,624,457.48/6,211.80
  6. Step 6: Final answer
    x = 5,413.00

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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.