Home / 3,211.09-4,819.68-2,116.17

Finding the Fourth Proportional to 3,211.09, 4,819.68 and 2,116.17

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Solution

The fourth proportional to 3,211.09, 4,819.68 and 2,116.17 is: 3,176.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.09 : 4,819.68 = 2,116.17 : x
  2. Step 2: Convert to fraction form
    3,211.09/4,819.68 = 2,116.17/x
  3. Step 3: Cross multiply
    3,211.09x = 4,819.68 × 2,116.17
  4. Step 4: Simplify right side
    3,211.09x = 10,199,262.23
  5. Step 5: Solve for x
    x = 10,199,262.23/3,211.09
  6. Step 6: Final answer
    x = 3,176.26

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1.5x scale

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.