Home / 4,918.31-6,787.26-2,680.21

Finding the Fourth Proportional to 4,918.31, 6,787.26 and 2,680.21

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Solution

The fourth proportional to 4,918.31, 6,787.26 and 2,680.21 is: 3,698.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.31 : 6,787.26 = 2,680.21 : x
  2. Step 2: Convert to fraction form
    4,918.31/6,787.26 = 2,680.21/x
  3. Step 3: Cross multiply
    4,918.31x = 6,787.26 × 2,680.21
  4. Step 4: Simplify right side
    4,918.31x = 18,191,265.16
  5. Step 5: Solve for x
    x = 18,191,265.16/4,918.31
  6. Step 6: Final answer
    x = 3,698.68

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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.