Home / 4,918.28-6,787.16-2,680.09

Finding the Fourth Proportional to 4,918.28, 6,787.16 and 2,680.09

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Solution

The fourth proportional to 4,918.28, 6,787.16 and 2,680.09 is: 3,698.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.28 : 6,787.16 = 2,680.09 : x
  2. Step 2: Convert to fraction form
    4,918.28/6,787.16 = 2,680.09/x
  3. Step 3: Cross multiply
    4,918.28x = 6,787.16 × 2,680.09
  4. Step 4: Simplify right side
    4,918.28x = 18,190,217.50
  5. Step 5: Solve for x
    x = 18,190,217.50/4,918.28
  6. Step 6: Final answer
    x = 3,698.50

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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.