Home / 6,378.09-9,559.49-2,679

Finding the Fourth Proportional to 6,378.09, 9,559.49 and 2,679

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Solution

The fourth proportional to 6,378.09, 9,559.49 and 2,679 is: 4,015.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378.09 : 9,559.49 = 2,679 : x
  2. Step 2: Convert to fraction form
    6,378.09/9,559.49 = 2,679/x
  3. Step 3: Cross multiply
    6,378.09x = 9,559.49 × 2,679
  4. Step 4: Simplify right side
    6,378.09x = 25,609,860.32
  5. Step 5: Solve for x
    x = 25,609,860.32/6,378.09
  6. Step 6: Final answer
    x = 4,015.29

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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.