Home / 3,326.90-4,990.96-1,379.24

Finding the Fourth Proportional to 3,326.90, 4,990.96 and 1,379.24

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Solution

The fourth proportional to 3,326.90, 4,990.96 and 1,379.24 is: 2,069.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.90 : 4,990.96 = 1,379.24 : x
  2. Step 2: Convert to fraction form
    3,326.90/4,990.96 = 1,379.24/x
  3. Step 3: Cross multiply
    3,326.90x = 4,990.96 × 1,379.24
  4. Step 4: Simplify right side
    3,326.90x = 6,883,731.67
  5. Step 5: Solve for x
    x = 6,883,731.67/3,326.90
  6. Step 6: Final answer
    x = 2,069.11

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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.