Home / 3,149.64-4,346.19-1,890.36

Finding the Fourth Proportional to 3,149.64, 4,346.19 and 1,890.36

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Solution

The fourth proportional to 3,149.64, 4,346.19 and 1,890.36 is: 2,608.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.64 : 4,346.19 = 1,890.36 : x
  2. Step 2: Convert to fraction form
    3,149.64/4,346.19 = 1,890.36/x
  3. Step 3: Cross multiply
    3,149.64x = 4,346.19 × 1,890.36
  4. Step 4: Simplify right side
    3,149.64x = 8,215,863.73
  5. Step 5: Solve for x
    x = 8,215,863.73/3,149.64
  6. Step 6: Final answer
    x = 2,608.51

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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.