Home / 3,131.78-4,697.13-1,466.07

Finding the Fourth Proportional to 3,131.78, 4,697.13 and 1,466.07

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Solution

The fourth proportional to 3,131.78, 4,697.13 and 1,466.07 is: 2,198.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.78 : 4,697.13 = 1,466.07 : x
  2. Step 2: Convert to fraction form
    3,131.78/4,697.13 = 1,466.07/x
  3. Step 3: Cross multiply
    3,131.78x = 4,697.13 × 1,466.07
  4. Step 4: Simplify right side
    3,131.78x = 6,886,321.38
  5. Step 5: Solve for x
    x = 6,886,321.38/3,131.78
  6. Step 6: Final answer
    x = 2,198.86

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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.