Home / 2,176.20-3,257.28-1,762.56

Finding the Fourth Proportional to 2,176.20, 3,257.28 and 1,762.56

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Solution

The fourth proportional to 2,176.20, 3,257.28 and 1,762.56 is: 2,638.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.20 : 3,257.28 = 1,762.56 : x
  2. Step 2: Convert to fraction form
    2,176.20/3,257.28 = 1,762.56/x
  3. Step 3: Cross multiply
    2,176.20x = 3,257.28 × 1,762.56
  4. Step 4: Simplify right side
    2,176.20x = 5,741,151.44
  5. Step 5: Solve for x
    x = 5,741,151.44/2,176.20
  6. Step 6: Final answer
    x = 2,638.15

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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.