Home / 3,779.97-5,216.25-2,101.33

Finding the Fourth Proportional to 3,779.97, 5,216.25 and 2,101.33

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Solution

The fourth proportional to 3,779.97, 5,216.25 and 2,101.33 is: 2,899.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.97 : 5,216.25 = 2,101.33 : x
  2. Step 2: Convert to fraction form
    3,779.97/5,216.25 = 2,101.33/x
  3. Step 3: Cross multiply
    3,779.97x = 5,216.25 × 2,101.33
  4. Step 4: Simplify right side
    3,779.97x = 10,961,062.61
  5. Step 5: Solve for x
    x = 10,961,062.61/3,779.97
  6. Step 6: Final answer
    x = 2,899.78

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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.