Home / 3,720.67-5,581.71-1,222.56

Finding the Fourth Proportional to 3,720.67, 5,581.71 and 1,222.56

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Solution

The fourth proportional to 3,720.67, 5,581.71 and 1,222.56 is: 1,834.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.67 : 5,581.71 = 1,222.56 : x
  2. Step 2: Convert to fraction form
    3,720.67/5,581.71 = 1,222.56/x
  3. Step 3: Cross multiply
    3,720.67x = 5,581.71 × 1,222.56
  4. Step 4: Simplify right side
    3,720.67x = 6,823,975.38
  5. Step 5: Solve for x
    x = 6,823,975.38/3,720.67
  6. Step 6: Final answer
    x = 1,834.07

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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.