Home / 6,619.56-9,134.23-3,929.82

Finding the Fourth Proportional to 6,619.56, 9,134.23 and 3,929.82

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Solution

The fourth proportional to 6,619.56, 9,134.23 and 3,929.82 is: 5,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.56 : 9,134.23 = 3,929.82 : x
  2. Step 2: Convert to fraction form
    6,619.56/9,134.23 = 3,929.82/x
  3. Step 3: Cross multiply
    6,619.56x = 9,134.23 × 3,929.82
  4. Step 4: Simplify right side
    6,619.56x = 35,895,879.74
  5. Step 5: Solve for x
    x = 35,895,879.74/6,619.56
  6. Step 6: Final answer
    x = 5,422.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.