Home / 1,819.38-2,727.41-709.55

Finding the Fourth Proportional to 1,819.38, 2,727.41 and 709.55

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Solution

The fourth proportional to 1,819.38, 2,727.41 and 709.55 is: 1,063.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.38 : 2,727.41 = 709.55 : x
  2. Step 2: Convert to fraction form
    1,819.38/2,727.41 = 709.55/x
  3. Step 3: Cross multiply
    1,819.38x = 2,727.41 × 709.55
  4. Step 4: Simplify right side
    1,819.38x = 1,935,216.58
  5. Step 5: Solve for x
    x = 1,935,216.58/1,819.38
  6. Step 6: Final answer
    x = 1,063.67

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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.