Home / 4,122.42-6,178.11-2,660.82

Finding the Fourth Proportional to 4,122.42, 6,178.11 and 2,660.82

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Solution

The fourth proportional to 4,122.42, 6,178.11 and 2,660.82 is: 3,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.42 : 6,178.11 = 2,660.82 : x
  2. Step 2: Convert to fraction form
    4,122.42/6,178.11 = 2,660.82/x
  3. Step 3: Cross multiply
    4,122.42x = 6,178.11 × 2,660.82
  4. Step 4: Simplify right side
    4,122.42x = 16,438,838.65
  5. Step 5: Solve for x
    x = 16,438,838.65/4,122.42
  6. Step 6: Final answer
    x = 3,987.67

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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.