Home / 1,619.55-2,428.83-449.27

Finding the Fourth Proportional to 1,619.55, 2,428.83 and 449.27

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Solution

The fourth proportional to 1,619.55, 2,428.83 and 449.27 is: 673.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.55 : 2,428.83 = 449.27 : x
  2. Step 2: Convert to fraction form
    1,619.55/2,428.83 = 449.27/x
  3. Step 3: Cross multiply
    1,619.55x = 2,428.83 × 449.27
  4. Step 4: Simplify right side
    1,619.55x = 1,091,200.45
  5. Step 5: Solve for x
    x = 1,091,200.45/1,619.55
  6. Step 6: Final answer
    x = 673.77

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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.