Home / 3,581.80-4,940.46-2,918.68

Finding the Fourth Proportional to 3,581.80, 4,940.46 and 2,918.68

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Solution

The fourth proportional to 3,581.80, 4,940.46 and 2,918.68 is: 4,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.80 : 4,940.46 = 2,918.68 : x
  2. Step 2: Convert to fraction form
    3,581.80/4,940.46 = 2,918.68/x
  3. Step 3: Cross multiply
    3,581.80x = 4,940.46 × 2,918.68
  4. Step 4: Simplify right side
    3,581.80x = 14,419,621.79
  5. Step 5: Solve for x
    x = 14,419,621.79/3,581.80
  6. Step 6: Final answer
    x = 4,025.80

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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.