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Finding the Fourth Proportional to 5,489.18, 8,226.18 and 4,756.94

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Solution

The fourth proportional to 5,489.18, 8,226.18 and 4,756.94 is: 7,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,489.18 : 8,226.18 = 4,756.94 : x
  2. Step 2: Convert to fraction form
    5,489.18/8,226.18 = 4,756.94/x
  3. Step 3: Cross multiply
    5,489.18x = 8,226.18 × 4,756.94
  4. Step 4: Simplify right side
    5,489.18x = 39,131,444.69
  5. Step 5: Solve for x
    x = 39,131,444.69/5,489.18
  6. Step 6: Final answer
    x = 7,128.83

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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.