Home / 3,190.21-4,778.35-2,262.96

Finding the Fourth Proportional to 3,190.21, 4,778.35 and 2,262.96

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Solution

The fourth proportional to 3,190.21, 4,778.35 and 2,262.96 is: 3,389.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.21 : 4,778.35 = 2,262.96 : x
  2. Step 2: Convert to fraction form
    3,190.21/4,778.35 = 2,262.96/x
  3. Step 3: Cross multiply
    3,190.21x = 4,778.35 × 2,262.96
  4. Step 4: Simplify right side
    3,190.21x = 10,813,214.92
  5. Step 5: Solve for x
    x = 10,813,214.92/3,190.21
  6. Step 6: Final answer
    x = 3,389.50

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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.