Home / 2,212.70-3,046.56-1,880.60

Finding the Fourth Proportional to 2,212.70, 3,046.56 and 1,880.60

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Solution

The fourth proportional to 2,212.70, 3,046.56 and 1,880.60 is: 2,589.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.70 : 3,046.56 = 1,880.60 : x
  2. Step 2: Convert to fraction form
    2,212.70/3,046.56 = 1,880.60/x
  3. Step 3: Cross multiply
    2,212.70x = 3,046.56 × 1,880.60
  4. Step 4: Simplify right side
    2,212.70x = 5,729,360.74
  5. Step 5: Solve for x
    x = 5,729,360.74/2,212.70
  6. Step 6: Final answer
    x = 2,589.31

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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.