Home / 3,878.94-5,352.90-2,110.53

Finding the Fourth Proportional to 3,878.94, 5,352.90 and 2,110.53

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Solution

The fourth proportional to 3,878.94, 5,352.90 and 2,110.53 is: 2,912.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.94 : 5,352.90 = 2,110.53 : x
  2. Step 2: Convert to fraction form
    3,878.94/5,352.90 = 2,110.53/x
  3. Step 3: Cross multiply
    3,878.94x = 5,352.90 × 2,110.53
  4. Step 4: Simplify right side
    3,878.94x = 11,297,456.04
  5. Step 5: Solve for x
    x = 11,297,456.04/3,878.94
  6. Step 6: Final answer
    x = 2,912.51

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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.