Home / 3,878.51-5,352.56-2,110.09

Finding the Fourth Proportional to 3,878.51, 5,352.56 and 2,110.09

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Solution

The fourth proportional to 3,878.51, 5,352.56 and 2,110.09 is: 2,912.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.51 : 5,352.56 = 2,110.09 : x
  2. Step 2: Convert to fraction form
    3,878.51/5,352.56 = 2,110.09/x
  3. Step 3: Cross multiply
    3,878.51x = 5,352.56 × 2,110.09
  4. Step 4: Simplify right side
    3,878.51x = 11,294,361.84
  5. Step 5: Solve for x
    x = 11,294,361.84/3,878.51
  6. Step 6: Final answer
    x = 2,912.04

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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.