Home / 1,819.38-2,511.44-1,156.80

Finding the Fourth Proportional to 1,819.38, 2,511.44 and 1,156.80

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Solution

The fourth proportional to 1,819.38, 2,511.44 and 1,156.80 is: 1,596.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.38 : 2,511.44 = 1,156.80 : x
  2. Step 2: Convert to fraction form
    1,819.38/2,511.44 = 1,156.80/x
  3. Step 3: Cross multiply
    1,819.38x = 2,511.44 × 1,156.80
  4. Step 4: Simplify right side
    1,819.38x = 2,905,233.79
  5. Step 5: Solve for x
    x = 2,905,233.79/1,819.38
  6. Step 6: Final answer
    x = 1,596.83

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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.