Home / 3,979.96-5,973.18-2,828.68

Finding the Fourth Proportional to 3,979.96, 5,973.18 and 2,828.68

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Solution

The fourth proportional to 3,979.96, 5,973.18 and 2,828.68 is: 4,245.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.96 : 5,973.18 = 2,828.68 : x
  2. Step 2: Convert to fraction form
    3,979.96/5,973.18 = 2,828.68/x
  3. Step 3: Cross multiply
    3,979.96x = 5,973.18 × 2,828.68
  4. Step 4: Simplify right side
    3,979.96x = 16,896,214.80
  5. Step 5: Solve for x
    x = 16,896,214.80/3,979.96
  6. Step 6: Final answer
    x = 4,245.32

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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.