Home / 7,980.74-11,971.93-3,054.52

Finding the Fourth Proportional to 7,980.74, 11,971.93 and 3,054.52

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Solution

The fourth proportional to 7,980.74, 11,971.93 and 3,054.52 is: 4,582.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.74 : 11,971.93 = 3,054.52 : x
  2. Step 2: Convert to fraction form
    7,980.74/11,971.93 = 3,054.52/x
  3. Step 3: Cross multiply
    7,980.74x = 11,971.93 × 3,054.52
  4. Step 4: Simplify right side
    7,980.74x = 36,568,499.62
  5. Step 5: Solve for x
    x = 36,568,499.62/7,980.74
  6. Step 6: Final answer
    x = 4,582.09

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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.