Home / 1,748.38-2,622.57-449.85

Finding the Fourth Proportional to 1,748.38, 2,622.57 and 449.85

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Solution

The fourth proportional to 1,748.38, 2,622.57 and 449.85 is: 674.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.38 : 2,622.57 = 449.85 : x
  2. Step 2: Convert to fraction form
    1,748.38/2,622.57 = 449.85/x
  3. Step 3: Cross multiply
    1,748.38x = 2,622.57 × 449.85
  4. Step 4: Simplify right side
    1,748.38x = 1,179,763.11
  5. Step 5: Solve for x
    x = 1,179,763.11/1,748.38
  6. Step 6: Final answer
    x = 674.78

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Double scale
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1.5x scale

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.