Home / 3,318.83-4,579.89-1,806.42

Finding the Fourth Proportional to 3,318.83, 4,579.89 and 1,806.42

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Solution

The fourth proportional to 3,318.83, 4,579.89 and 1,806.42 is: 2,492.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.83 : 4,579.89 = 1,806.42 : x
  2. Step 2: Convert to fraction form
    3,318.83/4,579.89 = 1,806.42/x
  3. Step 3: Cross multiply
    3,318.83x = 4,579.89 × 1,806.42
  4. Step 4: Simplify right side
    3,318.83x = 8,273,187.72
  5. Step 5: Solve for x
    x = 8,273,187.72/3,318.83
  6. Step 6: Final answer
    x = 2,492.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.