Home / 1,818.20-2,725.68-1,512.56

Finding the Fourth Proportional to 1,818.20, 2,725.68 and 1,512.56

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Solution

The fourth proportional to 1,818.20, 2,725.68 and 1,512.56 is: 2,267.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.20 : 2,725.68 = 1,512.56 : x
  2. Step 2: Convert to fraction form
    1,818.20/2,725.68 = 1,512.56/x
  3. Step 3: Cross multiply
    1,818.20x = 2,725.68 × 1,512.56
  4. Step 4: Simplify right side
    1,818.20x = 4,122,754.54
  5. Step 5: Solve for x
    x = 4,122,754.54/1,818.20
  6. Step 6: Final answer
    x = 2,267.49

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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.