Home / 4,809.05-7,213.43-1,299.38

Finding the Fourth Proportional to 4,809.05, 7,213.43 and 1,299.38

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Solution

The fourth proportional to 4,809.05, 7,213.43 and 1,299.38 is: 1,949.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,809.05 : 7,213.43 = 1,299.38 : x
  2. Step 2: Convert to fraction form
    4,809.05/7,213.43 = 1,299.38/x
  3. Step 3: Cross multiply
    4,809.05x = 7,213.43 × 1,299.38
  4. Step 4: Simplify right side
    4,809.05x = 9,373,007.96
  5. Step 5: Solve for x
    x = 9,373,007.96/4,809.05
  6. Step 6: Final answer
    x = 1,949.04

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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.