Home / 3,987.07-5,982.57-2,824.56

Finding the Fourth Proportional to 3,987.07, 5,982.57 and 2,824.56

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Solution

The fourth proportional to 3,987.07, 5,982.57 and 2,824.56 is: 4,238.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.07 : 5,982.57 = 2,824.56 : x
  2. Step 2: Convert to fraction form
    3,987.07/5,982.57 = 2,824.56/x
  3. Step 3: Cross multiply
    3,987.07x = 5,982.57 × 2,824.56
  4. Step 4: Simplify right side
    3,987.07x = 16,898,127.92
  5. Step 5: Solve for x
    x = 16,898,127.92/3,987.07
  6. Step 6: Final answer
    x = 4,238.23

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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.