Home / 3,538.82-5,310.07-1,977.86

Finding the Fourth Proportional to 3,538.82, 5,310.07 and 1,977.86

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Solution

The fourth proportional to 3,538.82, 5,310.07 and 1,977.86 is: 2,967.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.82 : 5,310.07 = 1,977.86 : x
  2. Step 2: Convert to fraction form
    3,538.82/5,310.07 = 1,977.86/x
  3. Step 3: Cross multiply
    3,538.82x = 5,310.07 × 1,977.86
  4. Step 4: Simplify right side
    3,538.82x = 10,502,575.05
  5. Step 5: Solve for x
    x = 10,502,575.05/3,538.82
  6. Step 6: Final answer
    x = 2,967.82

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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.