Home / 2,709.20-4,063.82-1,325.26

Finding the Fourth Proportional to 2,709.20, 4,063.82 and 1,325.26

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Solution

The fourth proportional to 2,709.20, 4,063.82 and 1,325.26 is: 1,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709.20 : 4,063.82 = 1,325.26 : x
  2. Step 2: Convert to fraction form
    2,709.20/4,063.82 = 1,325.26/x
  3. Step 3: Cross multiply
    2,709.20x = 4,063.82 × 1,325.26
  4. Step 4: Simplify right side
    2,709.20x = 5,385,624.00
  5. Step 5: Solve for x
    x = 5,385,624.00/2,709.20
  6. Step 6: Final answer
    x = 1,987.90

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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.