Home / 3,620.78-4,995.75-2,276.60

Finding the Fourth Proportional to 3,620.78, 4,995.75 and 2,276.60

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Solution

The fourth proportional to 3,620.78, 4,995.75 and 2,276.60 is: 3,141.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.78 : 4,995.75 = 2,276.60 : x
  2. Step 2: Convert to fraction form
    3,620.78/4,995.75 = 2,276.60/x
  3. Step 3: Cross multiply
    3,620.78x = 4,995.75 × 2,276.60
  4. Step 4: Simplify right side
    3,620.78x = 11,373,324.45
  5. Step 5: Solve for x
    x = 11,373,324.45/3,620.78
  6. Step 6: Final answer
    x = 3,141.13

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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.