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Finding the Fourth Proportional to 6,643.37, 9,960.39 and 2,943.59

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Solution

The fourth proportional to 6,643.37, 9,960.39 and 2,943.59 is: 4,413.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.37 : 9,960.39 = 2,943.59 : x
  2. Step 2: Convert to fraction form
    6,643.37/9,960.39 = 2,943.59/x
  3. Step 3: Cross multiply
    6,643.37x = 9,960.39 × 2,943.59
  4. Step 4: Simplify right side
    6,643.37x = 29,319,254.60
  5. Step 5: Solve for x
    x = 29,319,254.60/6,643.37
  6. Step 6: Final answer
    x = 4,413.31

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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.