Home / 1,814.14-2,721.22-515.62

Finding the Fourth Proportional to 1,814.14, 2,721.22 and 515.62

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Solution

The fourth proportional to 1,814.14, 2,721.22 and 515.62 is: 773.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,814.14 : 2,721.22 = 515.62 : x
  2. Step 2: Convert to fraction form
    1,814.14/2,721.22 = 515.62/x
  3. Step 3: Cross multiply
    1,814.14x = 2,721.22 × 515.62
  4. Step 4: Simplify right side
    1,814.14x = 1,403,115.46
  5. Step 5: Solve for x
    x = 1,403,115.46/1,814.14
  6. Step 6: Final answer
    x = 773.43

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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.