Home / 3,723.18-5,138.40-2,380.03

Finding the Fourth Proportional to 3,723.18, 5,138.40 and 2,380.03

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Solution

The fourth proportional to 3,723.18, 5,138.40 and 2,380.03 is: 3,284.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.18 : 5,138.40 = 2,380.03 : x
  2. Step 2: Convert to fraction form
    3,723.18/5,138.40 = 2,380.03/x
  3. Step 3: Cross multiply
    3,723.18x = 5,138.40 × 2,380.03
  4. Step 4: Simplify right side
    3,723.18x = 12,229,546.15
  5. Step 5: Solve for x
    x = 12,229,546.15/3,723.18
  6. Step 6: Final answer
    x = 3,284.70

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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.