Home / 3,083.40-4,253.65-2,729.70

Finding the Fourth Proportional to 3,083.40, 4,253.65 and 2,729.70

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Solution

The fourth proportional to 3,083.40, 4,253.65 and 2,729.70 is: 3,765.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,083.40 : 4,253.65 = 2,729.70 : x
  2. Step 2: Convert to fraction form
    3,083.40/4,253.65 = 2,729.70/x
  3. Step 3: Cross multiply
    3,083.40x = 4,253.65 × 2,729.70
  4. Step 4: Simplify right side
    3,083.40x = 11,611,181.58
  5. Step 5: Solve for x
    x = 11,611,181.58/3,083.40
  6. Step 6: Final answer
    x = 3,765.71

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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.