Home / 2,195.22-3,028.64-1,310.70

Finding the Fourth Proportional to 2,195.22, 3,028.64 and 1,310.70

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Solution

The fourth proportional to 2,195.22, 3,028.64 and 1,310.70 is: 1,808.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.22 : 3,028.64 = 1,310.70 : x
  2. Step 2: Convert to fraction form
    2,195.22/3,028.64 = 1,310.70/x
  3. Step 3: Cross multiply
    2,195.22x = 3,028.64 × 1,310.70
  4. Step 4: Simplify right side
    2,195.22x = 3,969,631.89
  5. Step 5: Solve for x
    x = 3,969,631.89/2,195.22
  6. Step 6: Final answer
    x = 1,808.31

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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.