Home / 3,851.66-5,778.36-1,219.33

Finding the Fourth Proportional to 3,851.66, 5,778.36 and 1,219.33

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Solution

The fourth proportional to 3,851.66, 5,778.36 and 1,219.33 is: 1,829.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.66 : 5,778.36 = 1,219.33 : x
  2. Step 2: Convert to fraction form
    3,851.66/5,778.36 = 1,219.33/x
  3. Step 3: Cross multiply
    3,851.66x = 5,778.36 × 1,219.33
  4. Step 4: Simplify right side
    3,851.66x = 7,045,727.70
  5. Step 5: Solve for x
    x = 7,045,727.70/3,851.66
  6. Step 6: Final answer
    x = 1,829.27

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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.