Home / 7,140.06-10,708.88-2,757.56

Finding the Fourth Proportional to 7,140.06, 10,708.88 and 2,757.56

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Solution

The fourth proportional to 7,140.06, 10,708.88 and 2,757.56 is: 4,135.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.06 : 10,708.88 = 2,757.56 : x
  2. Step 2: Convert to fraction form
    7,140.06/10,708.88 = 2,757.56/x
  3. Step 3: Cross multiply
    7,140.06x = 10,708.88 × 2,757.56
  4. Step 4: Simplify right side
    7,140.06x = 29,530,311.80
  5. Step 5: Solve for x
    x = 29,530,311.80/7,140.06
  6. Step 6: Final answer
    x = 4,135.86

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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.