Home / 3,072.16-4,609.32-1,124.56

Finding the Fourth Proportional to 3,072.16, 4,609.32 and 1,124.56

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Solution

The fourth proportional to 3,072.16, 4,609.32 and 1,124.56 is: 1,687.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.16 : 4,609.32 = 1,124.56 : x
  2. Step 2: Convert to fraction form
    3,072.16/4,609.32 = 1,124.56/x
  3. Step 3: Cross multiply
    3,072.16x = 4,609.32 × 1,124.56
  4. Step 4: Simplify right side
    3,072.16x = 5,183,456.90
  5. Step 5: Solve for x
    x = 5,183,456.90/3,072.16
  6. Step 6: Final answer
    x = 1,687.24

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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.