Home / 3,979.48-5,969.22-1,018.18

Finding the Fourth Proportional to 3,979.48, 5,969.22 and 1,018.18

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Solution

The fourth proportional to 3,979.48, 5,969.22 and 1,018.18 is: 1,527.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.48 : 5,969.22 = 1,018.18 : x
  2. Step 2: Convert to fraction form
    3,979.48/5,969.22 = 1,018.18/x
  3. Step 3: Cross multiply
    3,979.48x = 5,969.22 × 1,018.18
  4. Step 4: Simplify right side
    3,979.48x = 6,077,740.42
  5. Step 5: Solve for x
    x = 6,077,740.42/3,979.48
  6. Step 6: Final answer
    x = 1,527.27

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Similar ratio
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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.