Home / 2,181.10-3,272.46-1,011.67

Finding the Fourth Proportional to 2,181.10, 3,272.46 and 1,011.67

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Solution

The fourth proportional to 2,181.10, 3,272.46 and 1,011.67 is: 1,517.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.10 : 3,272.46 = 1,011.67 : x
  2. Step 2: Convert to fraction form
    2,181.10/3,272.46 = 1,011.67/x
  3. Step 3: Cross multiply
    2,181.10x = 3,272.46 × 1,011.67
  4. Step 4: Simplify right side
    2,181.10x = 3,310,649.61
  5. Step 5: Solve for x
    x = 3,310,649.61/2,181.10
  6. Step 6: Final answer
    x = 1,517.88

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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.