Home / 6,619.80-9,914.57-3,159.48

Finding the Fourth Proportional to 6,619.80, 9,914.57 and 3,159.48

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Solution

The fourth proportional to 6,619.80, 9,914.57 and 3,159.48 is: 4,732.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.80 : 9,914.57 = 3,159.48 : x
  2. Step 2: Convert to fraction form
    6,619.80/9,914.57 = 3,159.48/x
  3. Step 3: Cross multiply
    6,619.80x = 9,914.57 × 3,159.48
  4. Step 4: Simplify right side
    6,619.80x = 31,324,885.62
  5. Step 5: Solve for x
    x = 31,324,885.62/6,619.80
  6. Step 6: Final answer
    x = 4,732.00

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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.