Home / 2,214.97-3,056.56-1,220.31

Finding the Fourth Proportional to 2,214.97, 3,056.56 and 1,220.31

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Solution

The fourth proportional to 2,214.97, 3,056.56 and 1,220.31 is: 1,683.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.97 : 3,056.56 = 1,220.31 : x
  2. Step 2: Convert to fraction form
    2,214.97/3,056.56 = 1,220.31/x
  3. Step 3: Cross multiply
    2,214.97x = 3,056.56 × 1,220.31
  4. Step 4: Simplify right side
    2,214.97x = 3,729,947.68
  5. Step 5: Solve for x
    x = 3,729,947.68/2,214.97
  6. Step 6: Final answer
    x = 1,683.97

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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.