Home / 3,984.75-5,979.69-1,676.25

Finding the Fourth Proportional to 3,984.75, 5,979.69 and 1,676.25

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Solution

The fourth proportional to 3,984.75, 5,979.69 and 1,676.25 is: 2,515.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.75 : 5,979.69 = 1,676.25 : x
  2. Step 2: Convert to fraction form
    3,984.75/5,979.69 = 1,676.25/x
  3. Step 3: Cross multiply
    3,984.75x = 5,979.69 × 1,676.25
  4. Step 4: Simplify right side
    3,984.75x = 10,023,455.36
  5. Step 5: Solve for x
    x = 10,023,455.36/3,984.75
  6. Step 6: Final answer
    x = 2,515.45

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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.