Home / 3,161.28-4,738.39-1,185.01

Finding the Fourth Proportional to 3,161.28, 4,738.39 and 1,185.01

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Solution

The fourth proportional to 3,161.28, 4,738.39 and 1,185.01 is: 1,776.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.28 : 4,738.39 = 1,185.01 : x
  2. Step 2: Convert to fraction form
    3,161.28/4,738.39 = 1,185.01/x
  3. Step 3: Cross multiply
    3,161.28x = 4,738.39 × 1,185.01
  4. Step 4: Simplify right side
    3,161.28x = 5,615,039.53
  5. Step 5: Solve for x
    x = 5,615,039.53/3,161.28
  6. Step 6: Final answer
    x = 1,776.19

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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.