Home / 7,769.79-11,650.08-3,087.29

Finding the Fourth Proportional to 7,769.79, 11,650.08 and 3,087.29

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Solution

The fourth proportional to 7,769.79, 11,650.08 and 3,087.29 is: 4,629.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.79 : 11,650.08 = 3,087.29 : x
  2. Step 2: Convert to fraction form
    7,769.79/11,650.08 = 3,087.29/x
  3. Step 3: Cross multiply
    7,769.79x = 11,650.08 × 3,087.29
  4. Step 4: Simplify right side
    7,769.79x = 35,967,175.48
  5. Step 5: Solve for x
    x = 35,967,175.48/7,769.79
  6. Step 6: Final answer
    x = 4,629.11

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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.