Home / 2,480.19-3,422.66-1,361.15

Finding the Fourth Proportional to 2,480.19, 3,422.66 and 1,361.15

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Solution

The fourth proportional to 2,480.19, 3,422.66 and 1,361.15 is: 1,878.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.19 : 3,422.66 = 1,361.15 : x
  2. Step 2: Convert to fraction form
    2,480.19/3,422.66 = 1,361.15/x
  3. Step 3: Cross multiply
    2,480.19x = 3,422.66 × 1,361.15
  4. Step 4: Simplify right side
    2,480.19x = 4,658,761.83
  5. Step 5: Solve for x
    x = 4,658,761.83/2,480.19
  6. Step 6: Final answer
    x = 1,878.39

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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.