Home / 3,181.32-4,389.12-2,001.96

Finding the Fourth Proportional to 3,181.32, 4,389.12 and 2,001.96

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Solution

The fourth proportional to 3,181.32, 4,389.12 and 2,001.96 is: 2,762.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.32 : 4,389.12 = 2,001.96 : x
  2. Step 2: Convert to fraction form
    3,181.32/4,389.12 = 2,001.96/x
  3. Step 3: Cross multiply
    3,181.32x = 4,389.12 × 2,001.96
  4. Step 4: Simplify right side
    3,181.32x = 8,786,842.68
  5. Step 5: Solve for x
    x = 8,786,842.68/3,181.32
  6. Step 6: Final answer
    x = 2,762.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.