Home / 2,679.53-4,012.00-1,378.26

Finding the Fourth Proportional to 2,679.53, 4,012.00 and 1,378.26

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Solution

The fourth proportional to 2,679.53, 4,012.00 and 1,378.26 is: 2,063.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.53 : 4,012.00 = 1,378.26 : x
  2. Step 2: Convert to fraction form
    2,679.53/4,012.00 = 1,378.26/x
  3. Step 3: Cross multiply
    2,679.53x = 4,012.00 × 1,378.26
  4. Step 4: Simplify right side
    2,679.53x = 5,529,575.67
  5. Step 5: Solve for x
    x = 5,529,575.67/2,679.53
  6. Step 6: Final answer
    x = 2,063.64

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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.