Home / 3,486.43-5,229.58-1,406.38

Finding the Fourth Proportional to 3,486.43, 5,229.58 and 1,406.38

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Solution

The fourth proportional to 3,486.43, 5,229.58 and 1,406.38 is: 2,109.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.43 : 5,229.58 = 1,406.38 : x
  2. Step 2: Convert to fraction form
    3,486.43/5,229.58 = 1,406.38/x
  3. Step 3: Cross multiply
    3,486.43x = 5,229.58 × 1,406.38
  4. Step 4: Simplify right side
    3,486.43x = 7,354,776.72
  5. Step 5: Solve for x
    x = 7,354,776.72/3,486.43
  6. Step 6: Final answer
    x = 2,109.54

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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.