Home / 2,116.69-3,175.58-818.26

Finding the Fourth Proportional to 2,116.69, 3,175.58 and 818.26

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Solution

The fourth proportional to 2,116.69, 3,175.58 and 818.26 is: 1,227.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.69 : 3,175.58 = 818.26 : x
  2. Step 2: Convert to fraction form
    2,116.69/3,175.58 = 818.26/x
  3. Step 3: Cross multiply
    2,116.69x = 3,175.58 × 818.26
  4. Step 4: Simplify right side
    2,116.69x = 2,598,450.09
  5. Step 5: Solve for x
    x = 2,598,450.09/2,116.69
  6. Step 6: Final answer
    x = 1,227.60

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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.