Home / 7,979.19-11,971.80-3,595.61

Finding the Fourth Proportional to 7,979.19, 11,971.80 and 3,595.61

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Solution

The fourth proportional to 7,979.19, 11,971.80 and 3,595.61 is: 5,394.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.19 : 11,971.80 = 3,595.61 : x
  2. Step 2: Convert to fraction form
    7,979.19/11,971.80 = 3,595.61/x
  3. Step 3: Cross multiply
    7,979.19x = 11,971.80 × 3,595.61
  4. Step 4: Simplify right side
    7,979.19x = 43,045,863.94
  5. Step 5: Solve for x
    x = 43,045,863.94/7,979.19
  6. Step 6: Final answer
    x = 5,394.77

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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.