Home / 1,519.26-2,275.00-1,211.56

Finding the Fourth Proportional to 1,519.26, 2,275.00 and 1,211.56

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Solution

The fourth proportional to 1,519.26, 2,275.00 and 1,211.56 is: 1,814.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.26 : 2,275.00 = 1,211.56 : x
  2. Step 2: Convert to fraction form
    1,519.26/2,275.00 = 1,211.56/x
  3. Step 3: Cross multiply
    1,519.26x = 2,275.00 × 1,211.56
  4. Step 4: Simplify right side
    1,519.26x = 2,756,291.99
  5. Step 5: Solve for x
    x = 2,756,291.99/1,519.26
  6. Step 6: Final answer
    x = 1,814.24

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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.