Home / 5,108.26-7,661.49-1,409.89

Finding the Fourth Proportional to 5,108.26, 7,661.49 and 1,409.89

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Solution

The fourth proportional to 5,108.26, 7,661.49 and 1,409.89 is: 2,114.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.26 : 7,661.49 = 1,409.89 : x
  2. Step 2: Convert to fraction form
    5,108.26/7,661.49 = 1,409.89/x
  3. Step 3: Cross multiply
    5,108.26x = 7,661.49 × 1,409.89
  4. Step 4: Simplify right side
    5,108.26x = 10,801,858.14
  5. Step 5: Solve for x
    x = 10,801,858.14/5,108.26
  6. Step 6: Final answer
    x = 2,114.59

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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.