Home / 2,180.43-3,271.23-1,257.03

Finding the Fourth Proportional to 2,180.43, 3,271.23 and 1,257.03

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Solution

The fourth proportional to 2,180.43, 3,271.23 and 1,257.03 is: 1,885.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.43 : 3,271.23 = 1,257.03 : x
  2. Step 2: Convert to fraction form
    2,180.43/3,271.23 = 1,257.03/x
  3. Step 3: Cross multiply
    2,180.43x = 3,271.23 × 1,257.03
  4. Step 4: Simplify right side
    2,180.43x = 4,112,034.25
  5. Step 5: Solve for x
    x = 4,112,034.25/2,180.43
  6. Step 6: Final answer
    x = 1,885.88

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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.