Home / 3,171.15-4,755.51-1,091.88

Finding the Fourth Proportional to 3,171.15, 4,755.51 and 1,091.88

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Solution

The fourth proportional to 3,171.15, 4,755.51 and 1,091.88 is: 1,637.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.15 : 4,755.51 = 1,091.88 : x
  2. Step 2: Convert to fraction form
    3,171.15/4,755.51 = 1,091.88/x
  3. Step 3: Cross multiply
    3,171.15x = 4,755.51 × 1,091.88
  4. Step 4: Simplify right side
    3,171.15x = 5,192,446.26
  5. Step 5: Solve for x
    x = 5,192,446.26/3,171.15
  6. Step 6: Final answer
    x = 1,637.40

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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.