Home / 3,786.33-5,681.34-1,320.06

Finding the Fourth Proportional to 3,786.33, 5,681.34 and 1,320.06

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Solution

The fourth proportional to 3,786.33, 5,681.34 and 1,320.06 is: 1,980.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.33 : 5,681.34 = 1,320.06 : x
  2. Step 2: Convert to fraction form
    3,786.33/5,681.34 = 1,320.06/x
  3. Step 3: Cross multiply
    3,786.33x = 5,681.34 × 1,320.06
  4. Step 4: Simplify right side
    3,786.33x = 7,499,709.68
  5. Step 5: Solve for x
    x = 7,499,709.68/3,786.33
  6. Step 6: Final answer
    x = 1,980.73

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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.