Home / 3,679.30-5,076.60-2,685.12

Finding the Fourth Proportional to 3,679.30, 5,076.60 and 2,685.12

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Solution

The fourth proportional to 3,679.30, 5,076.60 and 2,685.12 is: 3,704.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.30 : 5,076.60 = 2,685.12 : x
  2. Step 2: Convert to fraction form
    3,679.30/5,076.60 = 2,685.12/x
  3. Step 3: Cross multiply
    3,679.30x = 5,076.60 × 2,685.12
  4. Step 4: Simplify right side
    3,679.30x = 13,631,280.19
  5. Step 5: Solve for x
    x = 13,631,280.19/3,679.30
  6. Step 6: Final answer
    x = 3,704.86

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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.