Home / 3,845.39-5,768.36-1,380.23

Finding the Fourth Proportional to 3,845.39, 5,768.36 and 1,380.23

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Solution

The fourth proportional to 3,845.39, 5,768.36 and 1,380.23 is: 2,070.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.39 : 5,768.36 = 1,380.23 : x
  2. Step 2: Convert to fraction form
    3,845.39/5,768.36 = 1,380.23/x
  3. Step 3: Cross multiply
    3,845.39x = 5,768.36 × 1,380.23
  4. Step 4: Simplify right side
    3,845.39x = 7,961,627.78
  5. Step 5: Solve for x
    x = 7,961,627.78/3,845.39
  6. Step 6: Final answer
    x = 2,070.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.