Home / 1,819.27-2,507.65-1,229.59

Finding the Fourth Proportional to 1,819.27, 2,507.65 and 1,229.59

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Solution

The fourth proportional to 1,819.27, 2,507.65 and 1,229.59 is: 1,694.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.27 : 2,507.65 = 1,229.59 : x
  2. Step 2: Convert to fraction form
    1,819.27/2,507.65 = 1,229.59/x
  3. Step 3: Cross multiply
    1,819.27x = 2,507.65 × 1,229.59
  4. Step 4: Simplify right side
    1,819.27x = 3,083,381.36
  5. Step 5: Solve for x
    x = 3,083,381.36/1,819.27
  6. Step 6: Final answer
    x = 1,694.85

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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.