Home / 6,409.92-9,611.52-2,943.36

Finding the Fourth Proportional to 6,409.92, 9,611.52 and 2,943.36

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Solution

The fourth proportional to 6,409.92, 9,611.52 and 2,943.36 is: 4,413.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409.92 : 9,611.52 = 2,943.36 : x
  2. Step 2: Convert to fraction form
    6,409.92/9,611.52 = 2,943.36/x
  3. Step 3: Cross multiply
    6,409.92x = 9,611.52 × 2,943.36
  4. Step 4: Simplify right side
    6,409.92x = 28,290,163.51
  5. Step 5: Solve for x
    x = 28,290,163.51/6,409.92
  6. Step 6: Final answer
    x = 4,413.50

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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.