Home / 2,976.36-4,109.39-2,660.62

Finding the Fourth Proportional to 2,976.36, 4,109.39 and 2,660.62

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Solution

The fourth proportional to 2,976.36, 4,109.39 and 2,660.62 is: 3,673.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.36 : 4,109.39 = 2,660.62 : x
  2. Step 2: Convert to fraction form
    2,976.36/4,109.39 = 2,660.62/x
  3. Step 3: Cross multiply
    2,976.36x = 4,109.39 × 2,660.62
  4. Step 4: Simplify right side
    2,976.36x = 10,933,525.22
  5. Step 5: Solve for x
    x = 10,933,525.22/2,976.36
  6. Step 6: Final answer
    x = 3,673.46

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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.