Home / 2,980.20-4,467.87-2,008.20

Finding the Fourth Proportional to 2,980.20, 4,467.87 and 2,008.20

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Solution

The fourth proportional to 2,980.20, 4,467.87 and 2,008.20 is: 3,010.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.20 : 4,467.87 = 2,008.20 : x
  2. Step 2: Convert to fraction form
    2,980.20/4,467.87 = 2,008.20/x
  3. Step 3: Cross multiply
    2,980.20x = 4,467.87 × 2,008.20
  4. Step 4: Simplify right side
    2,980.20x = 8,972,376.53
  5. Step 5: Solve for x
    x = 8,972,376.53/2,980.20
  6. Step 6: Final answer
    x = 3,010.66

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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.