Home / 3,018.80-4,528.20-1,072.64

Finding the Fourth Proportional to 3,018.80, 4,528.20 and 1,072.64

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Solution

The fourth proportional to 3,018.80, 4,528.20 and 1,072.64 is: 1,608.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.80 : 4,528.20 = 1,072.64 : x
  2. Step 2: Convert to fraction form
    3,018.80/4,528.20 = 1,072.64/x
  3. Step 3: Cross multiply
    3,018.80x = 4,528.20 × 1,072.64
  4. Step 4: Simplify right side
    3,018.80x = 4,857,128.45
  5. Step 5: Solve for x
    x = 4,857,128.45/3,018.80
  6. Step 6: Final answer
    x = 1,608.96

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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.