Home / 6,928.10-10,392.21-1,997.75

Finding the Fourth Proportional to 6,928.10, 10,392.21 and 1,997.75

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Solution

The fourth proportional to 6,928.10, 10,392.21 and 1,997.75 is: 2,996.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928.10 : 10,392.21 = 1,997.75 : x
  2. Step 2: Convert to fraction form
    6,928.10/10,392.21 = 1,997.75/x
  3. Step 3: Cross multiply
    6,928.10x = 10,392.21 × 1,997.75
  4. Step 4: Simplify right side
    6,928.10x = 20,761,037.53
  5. Step 5: Solve for x
    x = 20,761,037.53/6,928.10
  6. Step 6: Final answer
    x = 2,996.64

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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.