Home / 3,175.26-4,382.13-1,778.01

Finding the Fourth Proportional to 3,175.26, 4,382.13 and 1,778.01

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Solution

The fourth proportional to 3,175.26, 4,382.13 and 1,778.01 is: 2,453.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.26 : 4,382.13 = 1,778.01 : x
  2. Step 2: Convert to fraction form
    3,175.26/4,382.13 = 1,778.01/x
  3. Step 3: Cross multiply
    3,175.26x = 4,382.13 × 1,778.01
  4. Step 4: Simplify right side
    3,175.26x = 7,791,470.96
  5. Step 5: Solve for x
    x = 7,791,470.96/3,175.26
  6. Step 6: Final answer
    x = 2,453.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.