Home / 7,976.85-11,965.89-2,430.69

Finding the Fourth Proportional to 7,976.85, 11,965.89 and 2,430.69

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Solution

The fourth proportional to 7,976.85, 11,965.89 and 2,430.69 is: 3,646.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.85 : 11,965.89 = 2,430.69 : x
  2. Step 2: Convert to fraction form
    7,976.85/11,965.89 = 2,430.69/x
  3. Step 3: Cross multiply
    7,976.85x = 11,965.89 × 2,430.69
  4. Step 4: Simplify right side
    7,976.85x = 29,085,369.16
  5. Step 5: Solve for x
    x = 29,085,369.16/7,976.85
  6. Step 6: Final answer
    x = 3,646.22

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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.