Home / 2,822.13-3,894.75-1,563.48

Finding the Fourth Proportional to 2,822.13, 3,894.75 and 1,563.48

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Solution

The fourth proportional to 2,822.13, 3,894.75 and 1,563.48 is: 2,157.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.13 : 3,894.75 = 1,563.48 : x
  2. Step 2: Convert to fraction form
    2,822.13/3,894.75 = 1,563.48/x
  3. Step 3: Cross multiply
    2,822.13x = 3,894.75 × 1,563.48
  4. Step 4: Simplify right side
    2,822.13x = 6,089,363.73
  5. Step 5: Solve for x
    x = 6,089,363.73/2,822.13
  6. Step 6: Final answer
    x = 2,157.72

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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.