Home / 6,918.84-10,382.04-2,761.20

Finding the Fourth Proportional to 6,918.84, 10,382.04 and 2,761.20

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Solution

The fourth proportional to 6,918.84, 10,382.04 and 2,761.20 is: 4,143.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.84 : 10,382.04 = 2,761.20 : x
  2. Step 2: Convert to fraction form
    6,918.84/10,382.04 = 2,761.20/x
  3. Step 3: Cross multiply
    6,918.84x = 10,382.04 × 2,761.20
  4. Step 4: Simplify right side
    6,918.84x = 28,666,888.85
  5. Step 5: Solve for x
    x = 28,666,888.85/6,918.84
  6. Step 6: Final answer
    x = 4,143.31

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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.