Home / 5,311.42-7,968.78-1,614.04

Finding the Fourth Proportional to 5,311.42, 7,968.78 and 1,614.04

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Solution

The fourth proportional to 5,311.42, 7,968.78 and 1,614.04 is: 2,421.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.42 : 7,968.78 = 1,614.04 : x
  2. Step 2: Convert to fraction form
    5,311.42/7,968.78 = 1,614.04/x
  3. Step 3: Cross multiply
    5,311.42x = 7,968.78 × 1,614.04
  4. Step 4: Simplify right side
    5,311.42x = 12,861,929.67
  5. Step 5: Solve for x
    x = 12,861,929.67/5,311.42
  6. Step 6: Final answer
    x = 2,421.56

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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.