Home / 6,918.30-10,379.44-3,409.36

Finding the Fourth Proportional to 6,918.30, 10,379.44 and 3,409.36

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Solution

The fourth proportional to 6,918.30, 10,379.44 and 3,409.36 is: 5,115.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.30 : 10,379.44 = 3,409.36 : x
  2. Step 2: Convert to fraction form
    6,918.30/10,379.44 = 3,409.36/x
  3. Step 3: Cross multiply
    6,918.30x = 10,379.44 × 3,409.36
  4. Step 4: Simplify right side
    6,918.30x = 35,387,178.61
  5. Step 5: Solve for x
    x = 35,387,178.61/6,918.30
  6. Step 6: Final answer
    x = 5,115.01

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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.