Home / 2,788.26-4,181.70-1,145.28

Finding the Fourth Proportional to 2,788.26, 4,181.70 and 1,145.28

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Solution

The fourth proportional to 2,788.26, 4,181.70 and 1,145.28 is: 1,717.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.26 : 4,181.70 = 1,145.28 : x
  2. Step 2: Convert to fraction form
    2,788.26/4,181.70 = 1,145.28/x
  3. Step 3: Cross multiply
    2,788.26x = 4,181.70 × 1,145.28
  4. Step 4: Simplify right side
    2,788.26x = 4,789,217.38
  5. Step 5: Solve for x
    x = 4,789,217.38/2,788.26
  6. Step 6: Final answer
    x = 1,717.64

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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.