Home / 3,015.65-4,517.60-2,078.43

Finding the Fourth Proportional to 3,015.65, 4,517.60 and 2,078.43

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Solution

The fourth proportional to 3,015.65, 4,517.60 and 2,078.43 is: 3,113.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.65 : 4,517.60 = 2,078.43 : x
  2. Step 2: Convert to fraction form
    3,015.65/4,517.60 = 2,078.43/x
  3. Step 3: Cross multiply
    3,015.65x = 4,517.60 × 2,078.43
  4. Step 4: Simplify right side
    3,015.65x = 9,389,504.98
  5. Step 5: Solve for x
    x = 9,389,504.98/3,015.65
  6. Step 6: Final answer
    x = 3,113.59

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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.