Home / 2,254.26-3,111.02-1,259.67

Finding the Fourth Proportional to 2,254.26, 3,111.02 and 1,259.67

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Solution

The fourth proportional to 2,254.26, 3,111.02 and 1,259.67 is: 1,738.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.26 : 3,111.02 = 1,259.67 : x
  2. Step 2: Convert to fraction form
    2,254.26/3,111.02 = 1,259.67/x
  3. Step 3: Cross multiply
    2,254.26x = 3,111.02 × 1,259.67
  4. Step 4: Simplify right side
    2,254.26x = 3,918,858.56
  5. Step 5: Solve for x
    x = 3,918,858.56/2,254.26
  6. Step 6: Final answer
    x = 1,738.42

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Half scale
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Double scale
Find fourth proportional to 2,255.26, 3,112.40 and 1,260.67
Similar ratio
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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.