Home / 3,131.18-4,696.86-1,743.74

Finding the Fourth Proportional to 3,131.18, 4,696.86 and 1,743.74

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Solution

The fourth proportional to 3,131.18, 4,696.86 and 1,743.74 is: 2,615.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.18 : 4,696.86 = 1,743.74 : x
  2. Step 2: Convert to fraction form
    3,131.18/4,696.86 = 1,743.74/x
  3. Step 3: Cross multiply
    3,131.18x = 4,696.86 × 1,743.74
  4. Step 4: Simplify right side
    3,131.18x = 8,190,102.66
  5. Step 5: Solve for x
    x = 8,190,102.66/3,131.18
  6. Step 6: Final answer
    x = 2,615.66

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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.