Home / 3,132.73-4,321.42-1,936.90

Finding the Fourth Proportional to 3,132.73, 4,321.42 and 1,936.90

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Solution

The fourth proportional to 3,132.73, 4,321.42 and 1,936.90 is: 2,671.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.73 : 4,321.42 = 1,936.90 : x
  2. Step 2: Convert to fraction form
    3,132.73/4,321.42 = 1,936.90/x
  3. Step 3: Cross multiply
    3,132.73x = 4,321.42 × 1,936.90
  4. Step 4: Simplify right side
    3,132.73x = 8,370,158.40
  5. Step 5: Solve for x
    x = 8,370,158.40/3,132.73
  6. Step 6: Final answer
    x = 2,671.84

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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.