Home / 2,680.97-3,698.66-1,631.21

Finding the Fourth Proportional to 2,680.97, 3,698.66 and 1,631.21

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Solution

The fourth proportional to 2,680.97, 3,698.66 and 1,631.21 is: 2,250.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.97 : 3,698.66 = 1,631.21 : x
  2. Step 2: Convert to fraction form
    2,680.97/3,698.66 = 1,631.21/x
  3. Step 3: Cross multiply
    2,680.97x = 3,698.66 × 1,631.21
  4. Step 4: Simplify right side
    2,680.97x = 6,033,276.76
  5. Step 5: Solve for x
    x = 6,033,276.76/2,680.97
  6. Step 6: Final answer
    x = 2,250.41

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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.