Home / 6,378.92-9,568.40-1,996.39

Finding the Fourth Proportional to 6,378.92, 9,568.40 and 1,996.39

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Solution

The fourth proportional to 6,378.92, 9,568.40 and 1,996.39 is: 2,994.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378.92 : 9,568.40 = 1,996.39 : x
  2. Step 2: Convert to fraction form
    6,378.92/9,568.40 = 1,996.39/x
  3. Step 3: Cross multiply
    6,378.92x = 9,568.40 × 1,996.39
  4. Step 4: Simplify right side
    6,378.92x = 19,102,200.25
  5. Step 5: Solve for x
    x = 19,102,200.25/6,378.92
  6. Step 6: Final answer
    x = 2,994.58

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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.