Home / 3,873.28-5,806.66-1,680.36

Finding the Fourth Proportional to 3,873.28, 5,806.66 and 1,680.36

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Solution

The fourth proportional to 3,873.28, 5,806.66 and 1,680.36 is: 2,519.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873.28 : 5,806.66 = 1,680.36 : x
  2. Step 2: Convert to fraction form
    3,873.28/5,806.66 = 1,680.36/x
  3. Step 3: Cross multiply
    3,873.28x = 5,806.66 × 1,680.36
  4. Step 4: Simplify right side
    3,873.28x = 9,757,270.80
  5. Step 5: Solve for x
    x = 9,757,270.80/3,873.28
  6. Step 6: Final answer
    x = 2,519.12

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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.