Home / 3,121.21-4,673.73-1,731.65

Finding the Fourth Proportional to 3,121.21, 4,673.73 and 1,731.65

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Solution

The fourth proportional to 3,121.21, 4,673.73 and 1,731.65 is: 2,592.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121.21 : 4,673.73 = 1,731.65 : x
  2. Step 2: Convert to fraction form
    3,121.21/4,673.73 = 1,731.65/x
  3. Step 3: Cross multiply
    3,121.21x = 4,673.73 × 1,731.65
  4. Step 4: Simplify right side
    3,121.21x = 8,093,264.55
  5. Step 5: Solve for x
    x = 8,093,264.55/3,121.21
  6. Step 6: Final answer
    x = 2,592.99

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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.