Home / 3,858.35-5,784.06-1,392.59

Finding the Fourth Proportional to 3,858.35, 5,784.06 and 1,392.59

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Solution

The fourth proportional to 3,858.35, 5,784.06 and 1,392.59 is: 2,087.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.35 : 5,784.06 = 1,392.59 : x
  2. Step 2: Convert to fraction form
    3,858.35/5,784.06 = 1,392.59/x
  3. Step 3: Cross multiply
    3,858.35x = 5,784.06 × 1,392.59
  4. Step 4: Simplify right side
    3,858.35x = 8,054,824.12
  5. Step 5: Solve for x
    x = 8,054,824.12/3,858.35
  6. Step 6: Final answer
    x = 2,087.63

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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.