Home / 3,266.28-4,508.42-1,990.62

Finding the Fourth Proportional to 3,266.28, 4,508.42 and 1,990.62

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Solution

The fourth proportional to 3,266.28, 4,508.42 and 1,990.62 is: 2,747.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,266.28 : 4,508.42 = 1,990.62 : x
  2. Step 2: Convert to fraction form
    3,266.28/4,508.42 = 1,990.62/x
  3. Step 3: Cross multiply
    3,266.28x = 4,508.42 × 1,990.62
  4. Step 4: Simplify right side
    3,266.28x = 8,974,541.07
  5. Step 5: Solve for x
    x = 8,974,541.07/3,266.28
  6. Step 6: Final answer
    x = 2,747.63

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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.