Home / 2,480.09-3,422.41-1,361.03

Finding the Fourth Proportional to 2,480.09, 3,422.41 and 1,361.03

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Solution

The fourth proportional to 2,480.09, 3,422.41 and 1,361.03 is: 1,878.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.09 : 3,422.41 = 1,361.03 : x
  2. Step 2: Convert to fraction form
    2,480.09/3,422.41 = 1,361.03/x
  3. Step 3: Cross multiply
    2,480.09x = 3,422.41 × 1,361.03
  4. Step 4: Simplify right side
    2,480.09x = 4,657,982.17
  5. Step 5: Solve for x
    x = 4,657,982.17/2,480.09
  6. Step 6: Final answer
    x = 1,878.15

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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.