Home / 3,491.09-5,234.61-1,409.39

Finding the Fourth Proportional to 3,491.09, 5,234.61 and 1,409.39

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Solution

The fourth proportional to 3,491.09, 5,234.61 and 1,409.39 is: 2,113.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.09 : 5,234.61 = 1,409.39 : x
  2. Step 2: Convert to fraction form
    3,491.09/5,234.61 = 1,409.39/x
  3. Step 3: Cross multiply
    3,491.09x = 5,234.61 × 1,409.39
  4. Step 4: Simplify right side
    3,491.09x = 7,377,597.80
  5. Step 5: Solve for x
    x = 7,377,597.80/3,491.09
  6. Step 6: Final answer
    x = 2,113.27

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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.