Home / 1,180.08-1,769.72-449.87

Finding the Fourth Proportional to 1,180.08, 1,769.72 and 449.87

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Solution

The fourth proportional to 1,180.08, 1,769.72 and 449.87 is: 674.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180.08 : 1,769.72 = 449.87 : x
  2. Step 2: Convert to fraction form
    1,180.08/1,769.72 = 449.87/x
  3. Step 3: Cross multiply
    1,180.08x = 1,769.72 × 449.87
  4. Step 4: Simplify right side
    1,180.08x = 796,141.69
  5. Step 5: Solve for x
    x = 796,141.69/1,180.08
  6. Step 6: Final answer
    x = 674.65

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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.