Home / 2,819.13-4,230.51-1,087.75

Finding the Fourth Proportional to 2,819.13, 4,230.51 and 1,087.75

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Solution

The fourth proportional to 2,819.13, 4,230.51 and 1,087.75 is: 1,632.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.13 : 4,230.51 = 1,087.75 : x
  2. Step 2: Convert to fraction form
    2,819.13/4,230.51 = 1,087.75/x
  3. Step 3: Cross multiply
    2,819.13x = 4,230.51 × 1,087.75
  4. Step 4: Simplify right side
    2,819.13x = 4,601,737.25
  5. Step 5: Solve for x
    x = 4,601,737.25/2,819.13
  6. Step 6: Final answer
    x = 1,632.33

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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.