Home / 3,109.34-4,286.41-2,223.60

Finding the Fourth Proportional to 3,109.34, 4,286.41 and 2,223.60

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Solution

The fourth proportional to 3,109.34, 4,286.41 and 2,223.60 is: 3,065.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.34 : 4,286.41 = 2,223.60 : x
  2. Step 2: Convert to fraction form
    3,109.34/4,286.41 = 2,223.60/x
  3. Step 3: Cross multiply
    3,109.34x = 4,286.41 × 2,223.60
  4. Step 4: Simplify right side
    3,109.34x = 9,531,255.72
  5. Step 5: Solve for x
    x = 9,531,255.72/3,109.34
  6. Step 6: Final answer
    x = 3,065.37

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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.