Home / 4,128.26-6,192.68-1,663.09

Finding the Fourth Proportional to 4,128.26, 6,192.68 and 1,663.09

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Solution

The fourth proportional to 4,128.26, 6,192.68 and 1,663.09 is: 2,494.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.26 : 6,192.68 = 1,663.09 : x
  2. Step 2: Convert to fraction form
    4,128.26/6,192.68 = 1,663.09/x
  3. Step 3: Cross multiply
    4,128.26x = 6,192.68 × 1,663.09
  4. Step 4: Simplify right side
    4,128.26x = 10,298,966.62
  5. Step 5: Solve for x
    x = 10,298,966.62/4,128.26
  6. Step 6: Final answer
    x = 2,494.75

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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.