Home / 3,275.91-4,520.96-1,999.55

Finding the Fourth Proportional to 3,275.91, 4,520.96 and 1,999.55

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Solution

The fourth proportional to 3,275.91, 4,520.96 and 1,999.55 is: 2,759.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.91 : 4,520.96 = 1,999.55 : x
  2. Step 2: Convert to fraction form
    3,275.91/4,520.96 = 1,999.55/x
  3. Step 3: Cross multiply
    3,275.91x = 4,520.96 × 1,999.55
  4. Step 4: Simplify right side
    3,275.91x = 9,039,852.97
  5. Step 5: Solve for x
    x = 9,039,852.97/3,275.91
  6. Step 6: Final answer
    x = 2,759.49

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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.