Home / 3,619.97-4,993.29-2,779.39

Finding the Fourth Proportional to 3,619.97, 4,993.29 and 2,779.39

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Solution

The fourth proportional to 3,619.97, 4,993.29 and 2,779.39 is: 3,833.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.97 : 4,993.29 = 2,779.39 : x
  2. Step 2: Convert to fraction form
    3,619.97/4,993.29 = 2,779.39/x
  3. Step 3: Cross multiply
    3,619.97x = 4,993.29 × 2,779.39
  4. Step 4: Simplify right side
    3,619.97x = 13,878,300.29
  5. Step 5: Solve for x
    x = 13,878,300.29/3,619.97
  6. Step 6: Final answer
    x = 3,833.82

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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.