Home / 7,314.20-10,965.90-3,150.80

Finding the Fourth Proportional to 7,314.20, 10,965.90 and 3,150.80

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Solution

The fourth proportional to 7,314.20, 10,965.90 and 3,150.80 is: 4,723.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,314.20 : 10,965.90 = 3,150.80 : x
  2. Step 2: Convert to fraction form
    7,314.20/10,965.90 = 3,150.80/x
  3. Step 3: Cross multiply
    7,314.20x = 10,965.90 × 3,150.80
  4. Step 4: Simplify right side
    7,314.20x = 34,551,357.72
  5. Step 5: Solve for x
    x = 34,551,357.72/7,314.20
  6. Step 6: Final answer
    x = 4,723.87

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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.