Home / 7,288.80-10,929.06-2,608.56

Finding the Fourth Proportional to 7,288.80, 10,929.06 and 2,608.56

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Solution

The fourth proportional to 7,288.80, 10,929.06 and 2,608.56 is: 3,911.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,288.80 : 10,929.06 = 2,608.56 : x
  2. Step 2: Convert to fraction form
    7,288.80/10,929.06 = 2,608.56/x
  3. Step 3: Cross multiply
    7,288.80x = 10,929.06 × 2,608.56
  4. Step 4: Simplify right side
    7,288.80x = 28,509,108.75
  5. Step 5: Solve for x
    x = 28,509,108.75/7,288.80
  6. Step 6: Final answer
    x = 3,911.36

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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.