Home / 3,979.57-5,968.48-1,205.59

Finding the Fourth Proportional to 3,979.57, 5,968.48 and 1,205.59

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Solution

The fourth proportional to 3,979.57, 5,968.48 and 1,205.59 is: 1,808.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.57 : 5,968.48 = 1,205.59 : x
  2. Step 2: Convert to fraction form
    3,979.57/5,968.48 = 1,205.59/x
  3. Step 3: Cross multiply
    3,979.57x = 5,968.48 × 1,205.59
  4. Step 4: Simplify right side
    3,979.57x = 7,195,539.80
  5. Step 5: Solve for x
    x = 7,195,539.80/3,979.57
  6. Step 6: Final answer
    x = 1,808.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.