Home / 3,439.45-5,160.39-1,976.59

Finding the Fourth Proportional to 3,439.45, 5,160.39 and 1,976.59

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Solution

The fourth proportional to 3,439.45, 5,160.39 and 1,976.59 is: 2,965.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.45 : 5,160.39 = 1,976.59 : x
  2. Step 2: Convert to fraction form
    3,439.45/5,160.39 = 1,976.59/x
  3. Step 3: Cross multiply
    3,439.45x = 5,160.39 × 1,976.59
  4. Step 4: Simplify right side
    3,439.45x = 10,199,975.27
  5. Step 5: Solve for x
    x = 10,199,975.27/3,439.45
  6. Step 6: Final answer
    x = 2,965.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.