Home / 2,884.16-4,310.44-2,105.80

Finding the Fourth Proportional to 2,884.16, 4,310.44 and 2,105.80

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Solution

The fourth proportional to 2,884.16, 4,310.44 and 2,105.80 is: 3,147.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.16 : 4,310.44 = 2,105.80 : x
  2. Step 2: Convert to fraction form
    2,884.16/4,310.44 = 2,105.80/x
  3. Step 3: Cross multiply
    2,884.16x = 4,310.44 × 2,105.80
  4. Step 4: Simplify right side
    2,884.16x = 9,076,914.02
  5. Step 5: Solve for x
    x = 9,076,914.02/2,884.16
  6. Step 6: Final answer
    x = 3,147.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.