Home / 3,149.99-4,346.66-1,891.15

Finding the Fourth Proportional to 3,149.99, 4,346.66 and 1,891.15

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Solution

The fourth proportional to 3,149.99, 4,346.66 and 1,891.15 is: 2,609.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.99 : 4,346.66 = 1,891.15 : x
  2. Step 2: Convert to fraction form
    3,149.99/4,346.66 = 1,891.15/x
  3. Step 3: Cross multiply
    3,149.99x = 4,346.66 × 1,891.15
  4. Step 4: Simplify right side
    3,149.99x = 8,220,179.92
  5. Step 5: Solve for x
    x = 8,220,179.92/3,149.99
  6. Step 6: Final answer
    x = 2,609.59

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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.