Home / 7,837.58-11,748.80-2,640.62

Finding the Fourth Proportional to 7,837.58, 11,748.80 and 2,640.62

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Solution

The fourth proportional to 7,837.58, 11,748.80 and 2,640.62 is: 3,958.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,837.58 : 11,748.80 = 2,640.62 : x
  2. Step 2: Convert to fraction form
    7,837.58/11,748.80 = 2,640.62/x
  3. Step 3: Cross multiply
    7,837.58x = 11,748.80 × 2,640.62
  4. Step 4: Simplify right side
    7,837.58x = 31,024,057.51
  5. Step 5: Solve for x
    x = 31,024,057.51/7,837.58
  6. Step 6: Final answer
    x = 3,958.37

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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.