Home / 7,048-10,575.89-3,929.76

Finding the Fourth Proportional to 7,048, 10,575.89 and 3,929.76

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Solution

The fourth proportional to 7,048, 10,575.89 and 3,929.76 is: 5,896.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,048 : 10,575.89 = 3,929.76 : x
  2. Step 2: Convert to fraction form
    7,048/10,575.89 = 3,929.76/x
  3. Step 3: Cross multiply
    7,048x = 10,575.89 × 3,929.76
  4. Step 4: Simplify right side
    7,048x = 41,560,709.49
  5. Step 5: Solve for x
    x = 41,560,709.49/7,048
  6. Step 6: Final answer
    x = 5,896.81

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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.