Home / 2,822.42-3,894.78-1,563.43

Finding the Fourth Proportional to 2,822.42, 3,894.78 and 1,563.43

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Solution

The fourth proportional to 2,822.42, 3,894.78 and 1,563.43 is: 2,157.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.42 : 3,894.78 = 1,563.43 : x
  2. Step 2: Convert to fraction form
    2,822.42/3,894.78 = 1,563.43/x
  3. Step 3: Cross multiply
    2,822.42x = 3,894.78 × 1,563.43
  4. Step 4: Simplify right side
    2,822.42x = 6,089,215.90
  5. Step 5: Solve for x
    x = 6,089,215.90/2,822.42
  6. Step 6: Final answer
    x = 2,157.44

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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.