Home / 3,980.08-5,961.91-2,331.62

Finding the Fourth Proportional to 3,980.08, 5,961.91 and 2,331.62

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Solution

The fourth proportional to 3,980.08, 5,961.91 and 2,331.62 is: 3,492.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.08 : 5,961.91 = 2,331.62 : x
  2. Step 2: Convert to fraction form
    3,980.08/5,961.91 = 2,331.62/x
  3. Step 3: Cross multiply
    3,980.08x = 5,961.91 × 2,331.62
  4. Step 4: Simplify right side
    3,980.08x = 13,900,917.67
  5. Step 5: Solve for x
    x = 13,900,917.67/3,980.08
  6. Step 6: Final answer
    x = 3,492.62

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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.