Home / 2,980.85-4,467.45-1,664.60

Finding the Fourth Proportional to 2,980.85, 4,467.45 and 1,664.60

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Solution

The fourth proportional to 2,980.85, 4,467.45 and 1,664.60 is: 2,494.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.85 : 4,467.45 = 1,664.60 : x
  2. Step 2: Convert to fraction form
    2,980.85/4,467.45 = 1,664.60/x
  3. Step 3: Cross multiply
    2,980.85x = 4,467.45 × 1,664.60
  4. Step 4: Simplify right side
    2,980.85x = 7,436,517.27
  5. Step 5: Solve for x
    x = 7,436,517.27/2,980.85
  6. Step 6: Final answer
    x = 2,494.76

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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.