Home / 5,132.18-7,699.89-2,211.86

Finding the Fourth Proportional to 5,132.18, 7,699.89 and 2,211.86

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Solution

The fourth proportional to 5,132.18, 7,699.89 and 2,211.86 is: 3,318.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.18 : 7,699.89 = 2,211.86 : x
  2. Step 2: Convert to fraction form
    5,132.18/7,699.89 = 2,211.86/x
  3. Step 3: Cross multiply
    5,132.18x = 7,699.89 × 2,211.86
  4. Step 4: Simplify right side
    5,132.18x = 17,031,078.70
  5. Step 5: Solve for x
    x = 17,031,078.70/5,132.18
  6. Step 6: Final answer
    x = 3,318.49

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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.