Home / 8,110.83-12,171.05-3,430.58

Finding the Fourth Proportional to 8,110.83, 12,171.05 and 3,430.58

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Solution

The fourth proportional to 8,110.83, 12,171.05 and 3,430.58 is: 5,147.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.83 : 12,171.05 = 3,430.58 : x
  2. Step 2: Convert to fraction form
    8,110.83/12,171.05 = 3,430.58/x
  3. Step 3: Cross multiply
    8,110.83x = 12,171.05 × 3,430.58
  4. Step 4: Simplify right side
    8,110.83x = 41,753,682.70
  5. Step 5: Solve for x
    x = 41,753,682.70/8,110.83
  6. Step 6: Final answer
    x = 5,147.89

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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.