Home / 4,918.21-6,787.34-2,680.21

Finding the Fourth Proportional to 4,918.21, 6,787.34 and 2,680.21

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Solution

The fourth proportional to 4,918.21, 6,787.34 and 2,680.21 is: 3,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.21 : 6,787.34 = 2,680.21 : x
  2. Step 2: Convert to fraction form
    4,918.21/6,787.34 = 2,680.21/x
  3. Step 3: Cross multiply
    4,918.21x = 6,787.34 × 2,680.21
  4. Step 4: Simplify right side
    4,918.21x = 18,191,496.54
  5. Step 5: Solve for x
    x = 18,191,496.54/4,918.21
  6. Step 6: Final answer
    x = 3,698.80

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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.