Home / 1,245.38-1,867.98-514.94

Finding the Fourth Proportional to 1,245.38, 1,867.98 and 514.94

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Solution

The fourth proportional to 1,245.38, 1,867.98 and 514.94 is: 772.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245.38 : 1,867.98 = 514.94 : x
  2. Step 2: Convert to fraction form
    1,245.38/1,867.98 = 514.94/x
  3. Step 3: Cross multiply
    1,245.38x = 1,867.98 × 514.94
  4. Step 4: Simplify right side
    1,245.38x = 961,897.62
  5. Step 5: Solve for x
    x = 961,897.62/1,245.38
  6. Step 6: Final answer
    x = 772.37

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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.