Home / 5,190.14-7,786.42-2,269.28

Finding the Fourth Proportional to 5,190.14, 7,786.42 and 2,269.28

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Solution

The fourth proportional to 5,190.14, 7,786.42 and 2,269.28 is: 3,404.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.14 : 7,786.42 = 2,269.28 : x
  2. Step 2: Convert to fraction form
    5,190.14/7,786.42 = 2,269.28/x
  3. Step 3: Cross multiply
    5,190.14x = 7,786.42 × 2,269.28
  4. Step 4: Simplify right side
    5,190.14x = 17,669,567.18
  5. Step 5: Solve for x
    x = 17,669,567.18/5,190.14
  6. Step 6: Final answer
    x = 3,404.45

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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.