Home / 4,883.20-6,738.60-2,787.28

Finding the Fourth Proportional to 4,883.20, 6,738.60 and 2,787.28

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Solution

The fourth proportional to 4,883.20, 6,738.60 and 2,787.28 is: 3,846.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,883.20 : 6,738.60 = 2,787.28 : x
  2. Step 2: Convert to fraction form
    4,883.20/6,738.60 = 2,787.28/x
  3. Step 3: Cross multiply
    4,883.20x = 6,738.60 × 2,787.28
  4. Step 4: Simplify right side
    4,883.20x = 18,782,365.01
  5. Step 5: Solve for x
    x = 18,782,365.01/4,883.20
  6. Step 6: Final answer
    x = 3,846.32

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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.