Home / 3,983.38-5,975.02-1,790.56

Finding the Fourth Proportional to 3,983.38, 5,975.02 and 1,790.56

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Solution

The fourth proportional to 3,983.38, 5,975.02 and 1,790.56 is: 2,685.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.38 : 5,975.02 = 1,790.56 : x
  2. Step 2: Convert to fraction form
    3,983.38/5,975.02 = 1,790.56/x
  3. Step 3: Cross multiply
    3,983.38x = 5,975.02 × 1,790.56
  4. Step 4: Simplify right side
    3,983.38x = 10,698,597.84
  5. Step 5: Solve for x
    x = 10,698,597.84/3,983.38
  6. Step 6: Final answer
    x = 2,685.81

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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.