Home / 1,180.13-1,769.18-449.19

Finding the Fourth Proportional to 1,180.13, 1,769.18 and 449.19

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Solution

The fourth proportional to 1,180.13, 1,769.18 and 449.19 is: 673.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180.13 : 1,769.18 = 449.19 : x
  2. Step 2: Convert to fraction form
    1,180.13/1,769.18 = 449.19/x
  3. Step 3: Cross multiply
    1,180.13x = 1,769.18 × 449.19
  4. Step 4: Simplify right side
    1,180.13x = 794,695.72
  5. Step 5: Solve for x
    x = 794,695.72/1,180.13
  6. Step 6: Final answer
    x = 673.40

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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.