Home / 3,979.94-5,971.36-1,926.50

Finding the Fourth Proportional to 3,979.94, 5,971.36 and 1,926.50

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Solution

The fourth proportional to 3,979.94, 5,971.36 and 1,926.50 is: 2,890.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.94 : 5,971.36 = 1,926.50 : x
  2. Step 2: Convert to fraction form
    3,979.94/5,971.36 = 1,926.50/x
  3. Step 3: Cross multiply
    3,979.94x = 5,971.36 × 1,926.50
  4. Step 4: Simplify right side
    3,979.94x = 11,503,825.04
  5. Step 5: Solve for x
    x = 11,503,825.04/3,979.94
  6. Step 6: Final answer
    x = 2,890.45

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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.