Home / 3,878.83-5,352.77-2,110.42

Finding the Fourth Proportional to 3,878.83, 5,352.77 and 2,110.42

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Solution

The fourth proportional to 3,878.83, 5,352.77 and 2,110.42 is: 2,912.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.83 : 5,352.77 = 2,110.42 : x
  2. Step 2: Convert to fraction form
    3,878.83/5,352.77 = 2,110.42/x
  3. Step 3: Cross multiply
    3,878.83x = 5,352.77 × 2,110.42
  4. Step 4: Simplify right side
    3,878.83x = 11,296,604.83
  5. Step 5: Solve for x
    x = 11,296,604.83/3,878.83
  6. Step 6: Final answer
    x = 2,912.38

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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.