Home / 2,380.22-3,283.36-1,680.38

Finding the Fourth Proportional to 2,380.22, 3,283.36 and 1,680.38

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Solution

The fourth proportional to 2,380.22, 3,283.36 and 1,680.38 is: 2,317.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380.22 : 3,283.36 = 1,680.38 : x
  2. Step 2: Convert to fraction form
    2,380.22/3,283.36 = 1,680.38/x
  3. Step 3: Cross multiply
    2,380.22x = 3,283.36 × 1,680.38
  4. Step 4: Simplify right side
    2,380.22x = 5,517,271.86
  5. Step 5: Solve for x
    x = 5,517,271.86/2,380.22
  6. Step 6: Final answer
    x = 2,317.97

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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.