Home / 6,620.39-9,136.34-3,636.29

Finding the Fourth Proportional to 6,620.39, 9,136.34 and 3,636.29

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Solution

The fourth proportional to 6,620.39, 9,136.34 and 3,636.29 is: 5,018.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.39 : 9,136.34 = 3,636.29 : x
  2. Step 2: Convert to fraction form
    6,620.39/9,136.34 = 3,636.29/x
  3. Step 3: Cross multiply
    6,620.39x = 9,136.34 × 3,636.29
  4. Step 4: Simplify right side
    6,620.39x = 33,222,413.71
  5. Step 5: Solve for x
    x = 33,222,413.71/6,620.39
  6. Step 6: Final answer
    x = 5,018.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.