Home / 3,146.26-4,336.80-2,137.68

Finding the Fourth Proportional to 3,146.26, 4,336.80 and 2,137.68

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Solution

The fourth proportional to 3,146.26, 4,336.80 and 2,137.68 is: 2,946.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.26 : 4,336.80 = 2,137.68 : x
  2. Step 2: Convert to fraction form
    3,146.26/4,336.80 = 2,137.68/x
  3. Step 3: Cross multiply
    3,146.26x = 4,336.80 × 2,137.68
  4. Step 4: Simplify right side
    3,146.26x = 9,270,690.62
  5. Step 5: Solve for x
    x = 9,270,690.62/3,146.26
  6. Step 6: Final answer
    x = 2,946.57

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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.