Home / 2,818.67-4,228.70-1,431.54

Finding the Fourth Proportional to 2,818.67, 4,228.70 and 1,431.54

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Solution

The fourth proportional to 2,818.67, 4,228.70 and 1,431.54 is: 2,147.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.67 : 4,228.70 = 1,431.54 : x
  2. Step 2: Convert to fraction form
    2,818.67/4,228.70 = 1,431.54/x
  3. Step 3: Cross multiply
    2,818.67x = 4,228.70 × 1,431.54
  4. Step 4: Simplify right side
    2,818.67x = 6,053,546.04
  5. Step 5: Solve for x
    x = 6,053,546.04/2,818.67
  6. Step 6: Final answer
    x = 2,147.66

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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.