Home / 3,704.15-5,115.13-2,380.16

Finding the Fourth Proportional to 3,704.15, 5,115.13 and 2,380.16

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Solution

The fourth proportional to 3,704.15, 5,115.13 and 2,380.16 is: 3,286.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,704.15 : 5,115.13 = 2,380.16 : x
  2. Step 2: Convert to fraction form
    3,704.15/5,115.13 = 2,380.16/x
  3. Step 3: Cross multiply
    3,704.15x = 5,115.13 × 2,380.16
  4. Step 4: Simplify right side
    3,704.15x = 12,174,802.25
  5. Step 5: Solve for x
    x = 12,174,802.25/3,704.15
  6. Step 6: Final answer
    x = 3,286.80

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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.