Home / 7,979.65-11,969.54-2,983.15

Finding the Fourth Proportional to 7,979.65, 11,969.54 and 2,983.15

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Solution

The fourth proportional to 7,979.65, 11,969.54 and 2,983.15 is: 4,474.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.65 : 11,969.54 = 2,983.15 : x
  2. Step 2: Convert to fraction form
    7,979.65/11,969.54 = 2,983.15/x
  3. Step 3: Cross multiply
    7,979.65x = 11,969.54 × 2,983.15
  4. Step 4: Simplify right side
    7,979.65x = 35,706,933.25
  5. Step 5: Solve for x
    x = 35,706,933.25/7,979.65
  6. Step 6: Final answer
    x = 4,474.75

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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.