Home / 3,447.06-5,171.36-1,255.80

Finding the Fourth Proportional to 3,447.06, 5,171.36 and 1,255.80

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Solution

The fourth proportional to 3,447.06, 5,171.36 and 1,255.80 is: 1,883.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.06 : 5,171.36 = 1,255.80 : x
  2. Step 2: Convert to fraction form
    3,447.06/5,171.36 = 1,255.80/x
  3. Step 3: Cross multiply
    3,447.06x = 5,171.36 × 1,255.80
  4. Step 4: Simplify right side
    3,447.06x = 6,494,187.61
  5. Step 5: Solve for x
    x = 6,494,187.61/3,447.06
  6. Step 6: Final answer
    x = 1,883.98

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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.