Home / 2,086.20-2,880-1,613.03

Finding the Fourth Proportional to 2,086.20, 2,880 and 1,613.03

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Solution

The fourth proportional to 2,086.20, 2,880 and 1,613.03 is: 2,226.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086.20 : 2,880 = 1,613.03 : x
  2. Step 2: Convert to fraction form
    2,086.20/2,880 = 1,613.03/x
  3. Step 3: Cross multiply
    2,086.20x = 2,880 × 1,613.03
  4. Step 4: Simplify right side
    2,086.20x = 4,645,512
  5. Step 5: Solve for x
    x = 4,645,512/2,086.20
  6. Step 6: Final answer
    x = 2,226.78

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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.