Home / 5,403.94-8,105.91-1,299.94

Finding the Fourth Proportional to 5,403.94, 8,105.91 and 1,299.94

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Solution

The fourth proportional to 5,403.94, 8,105.91 and 1,299.94 is: 1,949.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.94 : 8,105.91 = 1,299.94 : x
  2. Step 2: Convert to fraction form
    5,403.94/8,105.91 = 1,299.94/x
  3. Step 3: Cross multiply
    5,403.94x = 8,105.91 × 1,299.94
  4. Step 4: Simplify right side
    5,403.94x = 10,537,171.51
  5. Step 5: Solve for x
    x = 10,537,171.51/5,403.94
  6. Step 6: Final answer
    x = 1,949.91

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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.