Home / 2,822.50-3,894.93-1,563.55

Finding the Fourth Proportional to 2,822.50, 3,894.93 and 1,563.55

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Solution

The fourth proportional to 2,822.50, 3,894.93 and 1,563.55 is: 2,157.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.50 : 3,894.93 = 1,563.55 : x
  2. Step 2: Convert to fraction form
    2,822.50/3,894.93 = 1,563.55/x
  3. Step 3: Cross multiply
    2,822.50x = 3,894.93 × 1,563.55
  4. Step 4: Simplify right side
    2,822.50x = 6,089,917.80
  5. Step 5: Solve for x
    x = 6,089,917.80/2,822.50
  6. Step 6: Final answer
    x = 2,157.63

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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.