Home / 2,976.64-4,107.08-1,982.46

Finding the Fourth Proportional to 2,976.64, 4,107.08 and 1,982.46

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Solution

The fourth proportional to 2,976.64, 4,107.08 and 1,982.46 is: 2,735.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.64 : 4,107.08 = 1,982.46 : x
  2. Step 2: Convert to fraction form
    2,976.64/4,107.08 = 1,982.46/x
  3. Step 3: Cross multiply
    2,976.64x = 4,107.08 × 1,982.46
  4. Step 4: Simplify right side
    2,976.64x = 8,142,121.82
  5. Step 5: Solve for x
    x = 8,142,121.82/2,976.64
  6. Step 6: Final answer
    x = 2,735.34

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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.