Home / 3,799.80-5,268.60-3,605.40

Finding the Fourth Proportional to 3,799.80, 5,268.60 and 3,605.40

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Solution

The fourth proportional to 3,799.80, 5,268.60 and 3,605.40 is: 4,999.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,799.80 : 5,268.60 = 3,605.40 : x
  2. Step 2: Convert to fraction form
    3,799.80/5,268.60 = 3,605.40/x
  3. Step 3: Cross multiply
    3,799.80x = 5,268.60 × 3,605.40
  4. Step 4: Simplify right side
    3,799.80x = 18,995,410.44
  5. Step 5: Solve for x
    x = 18,995,410.44/3,799.80
  6. Step 6: Final answer
    x = 4,999.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.