Home / 3,174.88-4,761.40-1,226.64

Finding the Fourth Proportional to 3,174.88, 4,761.40 and 1,226.64

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Solution

The fourth proportional to 3,174.88, 4,761.40 and 1,226.64 is: 1,839.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.88 : 4,761.40 = 1,226.64 : x
  2. Step 2: Convert to fraction form
    3,174.88/4,761.40 = 1,226.64/x
  3. Step 3: Cross multiply
    3,174.88x = 4,761.40 × 1,226.64
  4. Step 4: Simplify right side
    3,174.88x = 5,840,523.70
  5. Step 5: Solve for x
    x = 5,840,523.70/3,174.88
  6. Step 6: Final answer
    x = 1,839.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.