Home / 6,309.24-9,456.78-2,145.36

Finding the Fourth Proportional to 6,309.24, 9,456.78 and 2,145.36

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Solution

The fourth proportional to 6,309.24, 9,456.78 and 2,145.36 is: 3,215.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,309.24 : 9,456.78 = 2,145.36 : x
  2. Step 2: Convert to fraction form
    6,309.24/9,456.78 = 2,145.36/x
  3. Step 3: Cross multiply
    6,309.24x = 9,456.78 × 2,145.36
  4. Step 4: Simplify right side
    6,309.24x = 20,288,197.54
  5. Step 5: Solve for x
    x = 20,288,197.54/6,309.24
  6. Step 6: Final answer
    x = 3,215.63

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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.