Home / 10,619.56-15,930.06-2,828.44

Finding the Fourth Proportional to 10,619.56, 15,930.06 and 2,828.44

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Solution

The fourth proportional to 10,619.56, 15,930.06 and 2,828.44 is: 4,242.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.56 : 15,930.06 = 2,828.44 : x
  2. Step 2: Convert to fraction form
    10,619.56/15,930.06 = 2,828.44/x
  3. Step 3: Cross multiply
    10,619.56x = 15,930.06 × 2,828.44
  4. Step 4: Simplify right side
    10,619.56x = 45,057,218.91
  5. Step 5: Solve for x
    x = 45,057,218.91/10,619.56
  6. Step 6: Final answer
    x = 4,242.85

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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.