Home / 5,102.82-7,654.65-2,181.15

Finding the Fourth Proportional to 5,102.82, 7,654.65 and 2,181.15

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Solution

The fourth proportional to 5,102.82, 7,654.65 and 2,181.15 is: 3,271.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.82 : 7,654.65 = 2,181.15 : x
  2. Step 2: Convert to fraction form
    5,102.82/7,654.65 = 2,181.15/x
  3. Step 3: Cross multiply
    5,102.82x = 7,654.65 × 2,181.15
  4. Step 4: Simplify right side
    5,102.82x = 16,695,939.85
  5. Step 5: Solve for x
    x = 16,695,939.85/5,102.82
  6. Step 6: Final answer
    x = 3,271.90

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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.