Home / 7,828.50-11,743.38-3,211.50

Finding the Fourth Proportional to 7,828.50, 11,743.38 and 3,211.50

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Solution

The fourth proportional to 7,828.50, 11,743.38 and 3,211.50 is: 4,817.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.50 : 11,743.38 = 3,211.50 : x
  2. Step 2: Convert to fraction form
    7,828.50/11,743.38 = 3,211.50/x
  3. Step 3: Cross multiply
    7,828.50x = 11,743.38 × 3,211.50
  4. Step 4: Simplify right side
    7,828.50x = 37,713,864.87
  5. Step 5: Solve for x
    x = 37,713,864.87/7,828.50
  6. Step 6: Final answer
    x = 4,817.51

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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.