Home / 5,101.22-7,654.26-1,815.86

Finding the Fourth Proportional to 5,101.22, 7,654.26 and 1,815.86

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Solution

The fourth proportional to 5,101.22, 7,654.26 and 1,815.86 is: 2,724.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.22 : 7,654.26 = 1,815.86 : x
  2. Step 2: Convert to fraction form
    5,101.22/7,654.26 = 1,815.86/x
  3. Step 3: Cross multiply
    5,101.22x = 7,654.26 × 1,815.86
  4. Step 4: Simplify right side
    5,101.22x = 13,899,064.56
  5. Step 5: Solve for x
    x = 13,899,064.56/5,101.22
  6. Step 6: Final answer
    x = 2,724.65

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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.