Home / 5,540.09-8,313.80-2,618.60

Finding the Fourth Proportional to 5,540.09, 8,313.80 and 2,618.60

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Solution

The fourth proportional to 5,540.09, 8,313.80 and 2,618.60 is: 3,929.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.09 : 8,313.80 = 2,618.60 : x
  2. Step 2: Convert to fraction form
    5,540.09/8,313.80 = 2,618.60/x
  3. Step 3: Cross multiply
    5,540.09x = 8,313.80 × 2,618.60
  4. Step 4: Simplify right side
    5,540.09x = 21,770,462.02
  5. Step 5: Solve for x
    x = 21,770,462.02/5,540.09
  6. Step 6: Final answer
    x = 3,929.63

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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.