Home / 3,139.49-4,709.24-2,279.27

Finding the Fourth Proportional to 3,139.49, 4,709.24 and 2,279.27

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Solution

The fourth proportional to 3,139.49, 4,709.24 and 2,279.27 is: 3,418.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.49 : 4,709.24 = 2,279.27 : x
  2. Step 2: Convert to fraction form
    3,139.49/4,709.24 = 2,279.27/x
  3. Step 3: Cross multiply
    3,139.49x = 4,709.24 × 2,279.27
  4. Step 4: Simplify right side
    3,139.49x = 10,733,618.06
  5. Step 5: Solve for x
    x = 10,733,618.06/3,139.49
  6. Step 6: Final answer
    x = 3,418.91

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Half scale
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Double scale
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Similar ratio
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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.