Home / 2,255.56-3,112.66-1,260.84

Finding the Fourth Proportional to 2,255.56, 3,112.66 and 1,260.84

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Solution

The fourth proportional to 2,255.56, 3,112.66 and 1,260.84 is: 1,739.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.56 : 3,112.66 = 1,260.84 : x
  2. Step 2: Convert to fraction form
    2,255.56/3,112.66 = 1,260.84/x
  3. Step 3: Cross multiply
    2,255.56x = 3,112.66 × 1,260.84
  4. Step 4: Simplify right side
    2,255.56x = 3,924,566.23
  5. Step 5: Solve for x
    x = 3,924,566.23/2,255.56
  6. Step 6: Final answer
    x = 1,739.95

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1.5x scale

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.