Home / 2,788.10-4,182.27-1,143.49

Finding the Fourth Proportional to 2,788.10, 4,182.27 and 1,143.49

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Solution

The fourth proportional to 2,788.10, 4,182.27 and 1,143.49 is: 1,715.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.10 : 4,182.27 = 1,143.49 : x
  2. Step 2: Convert to fraction form
    2,788.10/4,182.27 = 1,143.49/x
  3. Step 3: Cross multiply
    2,788.10x = 4,182.27 × 1,143.49
  4. Step 4: Simplify right side
    2,788.10x = 4,782,383.92
  5. Step 5: Solve for x
    x = 4,782,383.92/2,788.10
  6. Step 6: Final answer
    x = 1,715.28

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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.