Home / 4,879.20-6,733.08-2,783.28

Finding the Fourth Proportional to 4,879.20, 6,733.08 and 2,783.28

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Solution

The fourth proportional to 4,879.20, 6,733.08 and 2,783.28 is: 3,840.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.20 : 6,733.08 = 2,783.28 : x
  2. Step 2: Convert to fraction form
    4,879.20/6,733.08 = 2,783.28/x
  3. Step 3: Cross multiply
    4,879.20x = 6,733.08 × 2,783.28
  4. Step 4: Simplify right side
    4,879.20x = 18,740,046.90
  5. Step 5: Solve for x
    x = 18,740,046.90/4,879.20
  6. Step 6: Final answer
    x = 3,840.80

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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.