Home / 7,974.96-11,960.52-3,870

Finding the Fourth Proportional to 7,974.96, 11,960.52 and 3,870

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Solution

The fourth proportional to 7,974.96, 11,960.52 and 3,870 is: 5,804.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.96 : 11,960.52 = 3,870 : x
  2. Step 2: Convert to fraction form
    7,974.96/11,960.52 = 3,870/x
  3. Step 3: Cross multiply
    7,974.96x = 11,960.52 × 3,870
  4. Step 4: Simplify right side
    7,974.96x = 46,287,212.40
  5. Step 5: Solve for x
    x = 46,287,212.40/7,974.96
  6. Step 6: Final answer
    x = 5,804.07

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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.