Home / 3,318.68-4,981.09-1,676.38

Finding the Fourth Proportional to 3,318.68, 4,981.09 and 1,676.38

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Solution

The fourth proportional to 3,318.68, 4,981.09 and 1,676.38 is: 2,516.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.68 : 4,981.09 = 1,676.38 : x
  2. Step 2: Convert to fraction form
    3,318.68/4,981.09 = 1,676.38/x
  3. Step 3: Cross multiply
    3,318.68x = 4,981.09 × 1,676.38
  4. Step 4: Simplify right side
    3,318.68x = 8,350,189.11
  5. Step 5: Solve for x
    x = 8,350,189.11/3,318.68
  6. Step 6: Final answer
    x = 2,516.12

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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.