Home / 3,704.31-5,115.35-2,380.32

Finding the Fourth Proportional to 3,704.31, 5,115.35 and 2,380.32

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Solution

The fourth proportional to 3,704.31, 5,115.35 and 2,380.32 is: 3,287.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,704.31 : 5,115.35 = 2,380.32 : x
  2. Step 2: Convert to fraction form
    3,704.31/5,115.35 = 2,380.32/x
  3. Step 3: Cross multiply
    3,704.31x = 5,115.35 × 2,380.32
  4. Step 4: Simplify right side
    3,704.31x = 12,176,175.86
  5. Step 5: Solve for x
    x = 12,176,175.86/3,704.31
  6. Step 6: Final answer
    x = 3,287.03

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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.