Home / 3,408.74-4,705.02-1,992.75

Finding the Fourth Proportional to 3,408.74, 4,705.02 and 1,992.75

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Solution

The fourth proportional to 3,408.74, 4,705.02 and 1,992.75 is: 2,750.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.74 : 4,705.02 = 1,992.75 : x
  2. Step 2: Convert to fraction form
    3,408.74/4,705.02 = 1,992.75/x
  3. Step 3: Cross multiply
    3,408.74x = 4,705.02 × 1,992.75
  4. Step 4: Simplify right side
    3,408.74x = 9,375,928.61
  5. Step 5: Solve for x
    x = 9,375,928.61/3,408.74
  6. Step 6: Final answer
    x = 2,750.56

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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.