Home / 7,769.04-11,645.85-3,086.31

Finding the Fourth Proportional to 7,769.04, 11,645.85 and 3,086.31

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Solution

The fourth proportional to 7,769.04, 11,645.85 and 3,086.31 is: 4,626.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.04 : 11,645.85 = 3,086.31 : x
  2. Step 2: Convert to fraction form
    7,769.04/11,645.85 = 3,086.31/x
  3. Step 3: Cross multiply
    7,769.04x = 11,645.85 × 3,086.31
  4. Step 4: Simplify right side
    7,769.04x = 35,942,703.31
  5. Step 5: Solve for x
    x = 35,942,703.31/7,769.04
  6. Step 6: Final answer
    x = 4,626.40

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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.