Home / 2,822.09-3,894.75-1,563.44

Finding the Fourth Proportional to 2,822.09, 3,894.75 and 1,563.44

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Solution

The fourth proportional to 2,822.09, 3,894.75 and 1,563.44 is: 2,157.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.09 : 3,894.75 = 1,563.44 : x
  2. Step 2: Convert to fraction form
    2,822.09/3,894.75 = 1,563.44/x
  3. Step 3: Cross multiply
    2,822.09x = 3,894.75 × 1,563.44
  4. Step 4: Simplify right side
    2,822.09x = 6,089,188.47
  5. Step 5: Solve for x
    x = 6,089,188.47/2,822.09
  6. Step 6: Final answer
    x = 2,157.69

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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.