Home / 2,668.20-4,003.56-1,680.84

Finding the Fourth Proportional to 2,668.20, 4,003.56 and 1,680.84

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Solution

The fourth proportional to 2,668.20, 4,003.56 and 1,680.84 is: 2,522.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668.20 : 4,003.56 = 1,680.84 : x
  2. Step 2: Convert to fraction form
    2,668.20/4,003.56 = 1,680.84/x
  3. Step 3: Cross multiply
    2,668.20x = 4,003.56 × 1,680.84
  4. Step 4: Simplify right side
    2,668.20x = 6,729,343.79
  5. Step 5: Solve for x
    x = 6,729,343.79/2,668.20
  6. Step 6: Final answer
    x = 2,522.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.