Home / 1,511.03-2,262.90-859.79

Finding the Fourth Proportional to 1,511.03, 2,262.90 and 859.79

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Solution

The fourth proportional to 1,511.03, 2,262.90 and 859.79 is: 1,287.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.03 : 2,262.90 = 859.79 : x
  2. Step 2: Convert to fraction form
    1,511.03/2,262.90 = 859.79/x
  3. Step 3: Cross multiply
    1,511.03x = 2,262.90 × 859.79
  4. Step 4: Simplify right side
    1,511.03x = 1,945,618.79
  5. Step 5: Solve for x
    x = 1,945,618.79/1,511.03
  6. Step 6: Final answer
    x = 1,287.61

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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.