Home / 3,086.45-4,258.33-1,890.82

Finding the Fourth Proportional to 3,086.45, 4,258.33 and 1,890.82

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Solution

The fourth proportional to 3,086.45, 4,258.33 and 1,890.82 is: 2,608.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.45 : 4,258.33 = 1,890.82 : x
  2. Step 2: Convert to fraction form
    3,086.45/4,258.33 = 1,890.82/x
  3. Step 3: Cross multiply
    3,086.45x = 4,258.33 × 1,890.82
  4. Step 4: Simplify right side
    3,086.45x = 8,051,737.44
  5. Step 5: Solve for x
    x = 8,051,737.44/3,086.45
  6. Step 6: Final answer
    x = 2,608.73

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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.