Home / 2,171.32-3,257.04-1,861.24

Finding the Fourth Proportional to 2,171.32, 3,257.04 and 1,861.24

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Solution

The fourth proportional to 2,171.32, 3,257.04 and 1,861.24 is: 2,791.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.32 : 3,257.04 = 1,861.24 : x
  2. Step 2: Convert to fraction form
    2,171.32/3,257.04 = 1,861.24/x
  3. Step 3: Cross multiply
    2,171.32x = 3,257.04 × 1,861.24
  4. Step 4: Simplify right side
    2,171.32x = 6,062,133.13
  5. Step 5: Solve for x
    x = 6,062,133.13/2,171.32
  6. Step 6: Final answer
    x = 2,791.91

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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.