Home / 4,918.42-6,787.38-2,680.12

Finding the Fourth Proportional to 4,918.42, 6,787.38 and 2,680.12

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Solution

The fourth proportional to 4,918.42, 6,787.38 and 2,680.12 is: 3,698.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.42 : 6,787.38 = 2,680.12 : x
  2. Step 2: Convert to fraction form
    4,918.42/6,787.38 = 2,680.12/x
  3. Step 3: Cross multiply
    4,918.42x = 6,787.38 × 2,680.12
  4. Step 4: Simplify right side
    4,918.42x = 18,190,992.89
  5. Step 5: Solve for x
    x = 18,190,992.89/4,918.42
  6. Step 6: Final answer
    x = 3,698.54

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1.5x scale

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.