Home / 7,976.87-11,965.79-2,430.62

Finding the Fourth Proportional to 7,976.87, 11,965.79 and 2,430.62

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Solution

The fourth proportional to 7,976.87, 11,965.79 and 2,430.62 is: 3,646.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.87 : 11,965.79 = 2,430.62 : x
  2. Step 2: Convert to fraction form
    7,976.87/11,965.79 = 2,430.62/x
  3. Step 3: Cross multiply
    7,976.87x = 11,965.79 × 2,430.62
  4. Step 4: Simplify right side
    7,976.87x = 29,084,288.49
  5. Step 5: Solve for x
    x = 29,084,288.49/7,976.87
  6. Step 6: Final answer
    x = 3,646.08

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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.