Home / 3,783.26-5,220.50-2,290.64

Finding the Fourth Proportional to 3,783.26, 5,220.50 and 2,290.64

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Solution

The fourth proportional to 3,783.26, 5,220.50 and 2,290.64 is: 3,160.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.26 : 5,220.50 = 2,290.64 : x
  2. Step 2: Convert to fraction form
    3,783.26/5,220.50 = 2,290.64/x
  3. Step 3: Cross multiply
    3,783.26x = 5,220.50 × 2,290.64
  4. Step 4: Simplify right side
    3,783.26x = 11,958,286.12
  5. Step 5: Solve for x
    x = 11,958,286.12/3,783.26
  6. Step 6: Final answer
    x = 3,160.84

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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.