Home / 6,619.80-9,927.59-2,176.43

Finding the Fourth Proportional to 6,619.80, 9,927.59 and 2,176.43

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Solution

The fourth proportional to 6,619.80, 9,927.59 and 2,176.43 is: 3,263.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.80 : 9,927.59 = 2,176.43 : x
  2. Step 2: Convert to fraction form
    6,619.80/9,927.59 = 2,176.43/x
  3. Step 3: Cross multiply
    6,619.80x = 9,927.59 × 2,176.43
  4. Step 4: Simplify right side
    6,619.80x = 21,606,733.88
  5. Step 5: Solve for x
    x = 21,606,733.88/6,619.80
  6. Step 6: Final answer
    x = 3,263.96

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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.