Home / 7,985.49-11,977.82-3,054.75

Finding the Fourth Proportional to 7,985.49, 11,977.82 and 3,054.75

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Solution

The fourth proportional to 7,985.49, 11,977.82 and 3,054.75 is: 4,581.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.49 : 11,977.82 = 3,054.75 : x
  2. Step 2: Convert to fraction form
    7,985.49/11,977.82 = 3,054.75/x
  3. Step 3: Cross multiply
    7,985.49x = 11,977.82 × 3,054.75
  4. Step 4: Simplify right side
    7,985.49x = 36,589,245.65
  5. Step 5: Solve for x
    x = 36,589,245.65/7,985.49
  6. Step 6: Final answer
    x = 4,581.97

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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.