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Finding the Fourth Proportional to 5,311.88, 7,967.88 and 1,849.12

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Solution

The fourth proportional to 5,311.88, 7,967.88 and 1,849.12 is: 2,773.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.88 : 7,967.88 = 1,849.12 : x
  2. Step 2: Convert to fraction form
    5,311.88/7,967.88 = 1,849.12/x
  3. Step 3: Cross multiply
    5,311.88x = 7,967.88 × 1,849.12
  4. Step 4: Simplify right side
    5,311.88x = 14,733,566.27
  5. Step 5: Solve for x
    x = 14,733,566.27/5,311.88
  6. Step 6: Final answer
    x = 2,773.70

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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.