Home / 5,116.15-7,679.49-3,172.96

Finding the Fourth Proportional to 5,116.15, 7,679.49 and 3,172.96

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Solution

The fourth proportional to 5,116.15, 7,679.49 and 3,172.96 is: 4,762.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.15 : 7,679.49 = 3,172.96 : x
  2. Step 2: Convert to fraction form
    5,116.15/7,679.49 = 3,172.96/x
  3. Step 3: Cross multiply
    5,116.15x = 7,679.49 × 3,172.96
  4. Step 4: Simplify right side
    5,116.15x = 24,366,714.59
  5. Step 5: Solve for x
    x = 24,366,714.59/5,116.15
  6. Step 6: Final answer
    x = 4,762.71

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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.