Home / 3,764.25-5,647.56-1,686

Finding the Fourth Proportional to 3,764.25, 5,647.56 and 1,686

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Solution

The fourth proportional to 3,764.25, 5,647.56 and 1,686 is: 2,529.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,764.25 : 5,647.56 = 1,686 : x
  2. Step 2: Convert to fraction form
    3,764.25/5,647.56 = 1,686/x
  3. Step 3: Cross multiply
    3,764.25x = 5,647.56 × 1,686
  4. Step 4: Simplify right side
    3,764.25x = 9,521,786.16
  5. Step 5: Solve for x
    x = 9,521,786.16/3,764.25
  6. Step 6: Final answer
    x = 2,529.53

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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.