Home / 2,674.97-3,690.56-1,680.35

Finding the Fourth Proportional to 2,674.97, 3,690.56 and 1,680.35

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Solution

The fourth proportional to 2,674.97, 3,690.56 and 1,680.35 is: 2,318.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.97 : 3,690.56 = 1,680.35 : x
  2. Step 2: Convert to fraction form
    2,674.97/3,690.56 = 1,680.35/x
  3. Step 3: Cross multiply
    2,674.97x = 3,690.56 × 1,680.35
  4. Step 4: Simplify right side
    2,674.97x = 6,201,418.24
  5. Step 5: Solve for x
    x = 6,201,418.24/2,674.97
  6. Step 6: Final answer
    x = 2,318.31

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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.