Home / 2,171.26-3,253.69-1,857.05

Finding the Fourth Proportional to 2,171.26, 3,253.69 and 1,857.05

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Solution

The fourth proportional to 2,171.26, 3,253.69 and 1,857.05 is: 2,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.26 : 3,253.69 = 1,857.05 : x
  2. Step 2: Convert to fraction form
    2,171.26/3,253.69 = 1,857.05/x
  3. Step 3: Cross multiply
    2,171.26x = 3,253.69 × 1,857.05
  4. Step 4: Simplify right side
    2,171.26x = 6,042,277.64
  5. Step 5: Solve for x
    x = 6,042,277.64/2,171.26
  6. Step 6: Final answer
    x = 2,782.85

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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.