Home / 7,170.42-10,753.57-2,786.85

Finding the Fourth Proportional to 7,170.42, 10,753.57 and 2,786.85

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Solution

The fourth proportional to 7,170.42, 10,753.57 and 2,786.85 is: 4,179.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170.42 : 10,753.57 = 2,786.85 : x
  2. Step 2: Convert to fraction form
    7,170.42/10,753.57 = 2,786.85/x
  3. Step 3: Cross multiply
    7,170.42x = 10,753.57 × 2,786.85
  4. Step 4: Simplify right side
    7,170.42x = 29,968,586.55
  5. Step 5: Solve for x
    x = 29,968,586.55/7,170.42
  6. Step 6: Final answer
    x = 4,179.47

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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.