Home / 4,261.05-6,392.55-1,299.75

Finding the Fourth Proportional to 4,261.05, 6,392.55 and 1,299.75

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Solution

The fourth proportional to 4,261.05, 6,392.55 and 1,299.75 is: 1,949.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261.05 : 6,392.55 = 1,299.75 : x
  2. Step 2: Convert to fraction form
    4,261.05/6,392.55 = 1,299.75/x
  3. Step 3: Cross multiply
    4,261.05x = 6,392.55 × 1,299.75
  4. Step 4: Simplify right side
    4,261.05x = 8,308,716.86
  5. Step 5: Solve for x
    x = 8,308,716.86/4,261.05
  6. Step 6: Final answer
    x = 1,949.92

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Half scale
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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.