Home / 4,822.78-7,228.60-2,220.25

Finding the Fourth Proportional to 4,822.78, 7,228.60 and 2,220.25

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Solution

The fourth proportional to 4,822.78, 7,228.60 and 2,220.25 is: 3,327.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,822.78 : 7,228.60 = 2,220.25 : x
  2. Step 2: Convert to fraction form
    4,822.78/7,228.60 = 2,220.25/x
  3. Step 3: Cross multiply
    4,822.78x = 7,228.60 × 2,220.25
  4. Step 4: Simplify right side
    4,822.78x = 16,049,299.15
  5. Step 5: Solve for x
    x = 16,049,299.15/4,822.78
  6. Step 6: Final answer
    x = 3,327.81

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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.