Home / 7,825.80-11,738.70-2,635.32

Finding the Fourth Proportional to 7,825.80, 11,738.70 and 2,635.32

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Solution

The fourth proportional to 7,825.80, 11,738.70 and 2,635.32 is: 3,952.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.80 : 11,738.70 = 2,635.32 : x
  2. Step 2: Convert to fraction form
    7,825.80/11,738.70 = 2,635.32/x
  3. Step 3: Cross multiply
    7,825.80x = 11,738.70 × 2,635.32
  4. Step 4: Simplify right side
    7,825.80x = 30,935,230.88
  5. Step 5: Solve for x
    x = 30,935,230.88/7,825.80
  6. Step 6: Final answer
    x = 3,952.98

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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.