Home / 4,918.40-6,787.55-2,680.16

Finding the Fourth Proportional to 4,918.40, 6,787.55 and 2,680.16

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Solution

The fourth proportional to 4,918.40, 6,787.55 and 2,680.16 is: 3,698.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.40 : 6,787.55 = 2,680.16 : x
  2. Step 2: Convert to fraction form
    4,918.40/6,787.55 = 2,680.16/x
  3. Step 3: Cross multiply
    4,918.40x = 6,787.55 × 2,680.16
  4. Step 4: Simplify right side
    4,918.40x = 18,191,706.61
  5. Step 5: Solve for x
    x = 18,191,706.61/4,918.40
  6. Step 6: Final answer
    x = 3,698.71

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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.