Home / 3,178.11-4,768.98-1,717.23

Finding the Fourth Proportional to 3,178.11, 4,768.98 and 1,717.23

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Solution

The fourth proportional to 3,178.11, 4,768.98 and 1,717.23 is: 2,576.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.11 : 4,768.98 = 1,717.23 : x
  2. Step 2: Convert to fraction form
    3,178.11/4,768.98 = 1,717.23/x
  3. Step 3: Cross multiply
    3,178.11x = 4,768.98 × 1,717.23
  4. Step 4: Simplify right side
    3,178.11x = 8,189,435.53
  5. Step 5: Solve for x
    x = 8,189,435.53/3,178.11
  6. Step 6: Final answer
    x = 2,576.83

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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.