Home / 3,811.89-5,260.77-2,319.60

Finding the Fourth Proportional to 3,811.89, 5,260.77 and 2,319.60

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Solution

The fourth proportional to 3,811.89, 5,260.77 and 2,319.60 is: 3,201.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.89 : 5,260.77 = 2,319.60 : x
  2. Step 2: Convert to fraction form
    3,811.89/5,260.77 = 2,319.60/x
  3. Step 3: Cross multiply
    3,811.89x = 5,260.77 × 2,319.60
  4. Step 4: Simplify right side
    3,811.89x = 12,202,882.09
  5. Step 5: Solve for x
    x = 12,202,882.09/3,811.89
  6. Step 6: Final answer
    x = 3,201.27

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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.