Home / 4,078.23-6,108.30-3,147

Finding the Fourth Proportional to 4,078.23, 6,108.30 and 3,147

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Solution

The fourth proportional to 4,078.23, 6,108.30 and 3,147 is: 4,713.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.23 : 6,108.30 = 3,147 : x
  2. Step 2: Convert to fraction form
    4,078.23/6,108.30 = 3,147/x
  3. Step 3: Cross multiply
    4,078.23x = 6,108.30 × 3,147
  4. Step 4: Simplify right side
    4,078.23x = 19,222,820.10
  5. Step 5: Solve for x
    x = 19,222,820.10/4,078.23
  6. Step 6: Final answer
    x = 4,713.52

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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.