Home / 2,976.35-4,107.77-2,267.20

Finding the Fourth Proportional to 2,976.35, 4,107.77 and 2,267.20

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Solution

The fourth proportional to 2,976.35, 4,107.77 and 2,267.20 is: 3,129.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.35 : 4,107.77 = 2,267.20 : x
  2. Step 2: Convert to fraction form
    2,976.35/4,107.77 = 2,267.20/x
  3. Step 3: Cross multiply
    2,976.35x = 4,107.77 × 2,267.20
  4. Step 4: Simplify right side
    2,976.35x = 9,313,131.54
  5. Step 5: Solve for x
    x = 9,313,131.54/2,976.35
  6. Step 6: Final answer
    x = 3,129.04

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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.