Home / 3,144.67-4,340.44-1,819.21

Finding the Fourth Proportional to 3,144.67, 4,340.44 and 1,819.21

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Solution

The fourth proportional to 3,144.67, 4,340.44 and 1,819.21 is: 2,510.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.67 : 4,340.44 = 1,819.21 : x
  2. Step 2: Convert to fraction form
    3,144.67/4,340.44 = 1,819.21/x
  3. Step 3: Cross multiply
    3,144.67x = 4,340.44 × 1,819.21
  4. Step 4: Simplify right side
    3,144.67x = 7,896,171.85
  5. Step 5: Solve for x
    x = 7,896,171.85/3,144.67
  6. Step 6: Final answer
    x = 2,510.97

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.