Home / 2,480.05-3,422.55-1,361.08

Finding the Fourth Proportional to 2,480.05, 3,422.55 and 1,361.08

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Solution

The fourth proportional to 2,480.05, 3,422.55 and 1,361.08 is: 1,878.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.05 : 3,422.55 = 1,361.08 : x
  2. Step 2: Convert to fraction form
    2,480.05/3,422.55 = 1,361.08/x
  3. Step 3: Cross multiply
    2,480.05x = 3,422.55 × 1,361.08
  4. Step 4: Simplify right side
    2,480.05x = 4,658,364.35
  5. Step 5: Solve for x
    x = 4,658,364.35/2,480.05
  6. Step 6: Final answer
    x = 1,878.33

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1.5x scale

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.