Home / 7,979.75-11,970.84-2,784.41

Finding the Fourth Proportional to 7,979.75, 11,970.84 and 2,784.41

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Solution

The fourth proportional to 7,979.75, 11,970.84 and 2,784.41 is: 4,177.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.75 : 11,970.84 = 2,784.41 : x
  2. Step 2: Convert to fraction form
    7,979.75/11,970.84 = 2,784.41/x
  3. Step 3: Cross multiply
    7,979.75x = 11,970.84 × 2,784.41
  4. Step 4: Simplify right side
    7,979.75x = 33,331,666.75
  5. Step 5: Solve for x
    x = 33,331,666.75/7,979.75
  6. Step 6: Final answer
    x = 4,177.03

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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.