Home / 4,878.69-6,732.61-2,640.60

Finding the Fourth Proportional to 4,878.69, 6,732.61 and 2,640.60

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Solution

The fourth proportional to 4,878.69, 6,732.61 and 2,640.60 is: 3,644.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.69 : 6,732.61 = 2,640.60 : x
  2. Step 2: Convert to fraction form
    4,878.69/6,732.61 = 2,640.60/x
  3. Step 3: Cross multiply
    4,878.69x = 6,732.61 × 2,640.60
  4. Step 4: Simplify right side
    4,878.69x = 17,778,096.30
  5. Step 5: Solve for x
    x = 17,778,096.30/4,878.69
  6. Step 6: Final answer
    x = 3,644.03

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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.