Home / 2,819.46-4,230.60-2,130.33

Finding the Fourth Proportional to 2,819.46, 4,230.60 and 2,130.33

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Solution

The fourth proportional to 2,819.46, 4,230.60 and 2,130.33 is: 3,196.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.46 : 4,230.60 = 2,130.33 : x
  2. Step 2: Convert to fraction form
    2,819.46/4,230.60 = 2,130.33/x
  3. Step 3: Cross multiply
    2,819.46x = 4,230.60 × 2,130.33
  4. Step 4: Simplify right side
    2,819.46x = 9,012,574.10
  5. Step 5: Solve for x
    x = 9,012,574.10/2,819.46
  6. Step 6: Final answer
    x = 3,196.56

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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.