Home / 1,234.24-1,849.94-618.38

Finding the Fourth Proportional to 1,234.24, 1,849.94 and 618.38

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Solution

The fourth proportional to 1,234.24, 1,849.94 and 618.38 is: 926.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234.24 : 1,849.94 = 618.38 : x
  2. Step 2: Convert to fraction form
    1,234.24/1,849.94 = 618.38/x
  3. Step 3: Cross multiply
    1,234.24x = 1,849.94 × 618.38
  4. Step 4: Simplify right side
    1,234.24x = 1,143,973.22
  5. Step 5: Solve for x
    x = 1,143,973.22/1,234.24
  6. Step 6: Final answer
    x = 926.87

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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.