Home / 6,919.32-10,378.98-3,958.68

Finding the Fourth Proportional to 6,919.32, 10,378.98 and 3,958.68

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Solution

The fourth proportional to 6,919.32, 10,378.98 and 3,958.68 is: 5,938.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.32 : 10,378.98 = 3,958.68 : x
  2. Step 2: Convert to fraction form
    6,919.32/10,378.98 = 3,958.68/x
  3. Step 3: Cross multiply
    6,919.32x = 10,378.98 × 3,958.68
  4. Step 4: Simplify right side
    6,919.32x = 41,087,060.55
  5. Step 5: Solve for x
    x = 41,087,060.55/6,919.32
  6. Step 6: Final answer
    x = 5,938.02

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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.