Home / 3,085.44-4,259.20-2,201.60

Finding the Fourth Proportional to 3,085.44, 4,259.20 and 2,201.60

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Solution

The fourth proportional to 3,085.44, 4,259.20 and 2,201.60 is: 3,039.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.44 : 4,259.20 = 2,201.60 : x
  2. Step 2: Convert to fraction form
    3,085.44/4,259.20 = 2,201.60/x
  3. Step 3: Cross multiply
    3,085.44x = 4,259.20 × 2,201.60
  4. Step 4: Simplify right side
    3,085.44x = 9,377,054.72
  5. Step 5: Solve for x
    x = 9,377,054.72/3,085.44
  6. Step 6: Final answer
    x = 3,039.13

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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.