Home / 4,918.72-6,787.68-2,680.48

Finding the Fourth Proportional to 4,918.72, 6,787.68 and 2,680.48

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Solution

The fourth proportional to 4,918.72, 6,787.68 and 2,680.48 is: 3,698.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.72 : 6,787.68 = 2,680.48 : x
  2. Step 2: Convert to fraction form
    4,918.72/6,787.68 = 2,680.48/x
  3. Step 3: Cross multiply
    4,918.72x = 6,787.68 × 2,680.48
  4. Step 4: Simplify right side
    4,918.72x = 18,194,240.49
  5. Step 5: Solve for x
    x = 18,194,240.49/4,918.72
  6. Step 6: Final answer
    x = 3,698.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.