Home / 2,255.48-3,112.35-1,310.97

Finding the Fourth Proportional to 2,255.48, 3,112.35 and 1,310.97

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Solution

The fourth proportional to 2,255.48, 3,112.35 and 1,310.97 is: 1,809.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.48 : 3,112.35 = 1,310.97 : x
  2. Step 2: Convert to fraction form
    2,255.48/3,112.35 = 1,310.97/x
  3. Step 3: Cross multiply
    2,255.48x = 3,112.35 × 1,310.97
  4. Step 4: Simplify right side
    2,255.48x = 4,080,197.48
  5. Step 5: Solve for x
    x = 4,080,197.48/2,255.48
  6. Step 6: Final answer
    x = 1,809.02

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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.