Home / 6,378.30-9,568.62-1,994.76

Finding the Fourth Proportional to 6,378.30, 9,568.62 and 1,994.76

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Solution

The fourth proportional to 6,378.30, 9,568.62 and 1,994.76 is: 2,992.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378.30 : 9,568.62 = 1,994.76 : x
  2. Step 2: Convert to fraction form
    6,378.30/9,568.62 = 1,994.76/x
  3. Step 3: Cross multiply
    6,378.30x = 9,568.62 × 1,994.76
  4. Step 4: Simplify right side
    6,378.30x = 19,087,100.43
  5. Step 5: Solve for x
    x = 19,087,100.43/6,378.30
  6. Step 6: Final answer
    x = 2,992.51

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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.