Home / 3,979.96-5,969.94-1,514.20

Finding the Fourth Proportional to 3,979.96, 5,969.94 and 1,514.20

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Solution

The fourth proportional to 3,979.96, 5,969.94 and 1,514.20 is: 2,271.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.96 : 5,969.94 = 1,514.20 : x
  2. Step 2: Convert to fraction form
    3,979.96/5,969.94 = 1,514.20/x
  3. Step 3: Cross multiply
    3,979.96x = 5,969.94 × 1,514.20
  4. Step 4: Simplify right side
    3,979.96x = 9,039,683.15
  5. Step 5: Solve for x
    x = 9,039,683.15/3,979.96
  6. Step 6: Final answer
    x = 2,271.30

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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.