Home / 3,122.45-4,682.30-1,173.28

Finding the Fourth Proportional to 3,122.45, 4,682.30 and 1,173.28

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Solution

The fourth proportional to 3,122.45, 4,682.30 and 1,173.28 is: 1,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.45 : 4,682.30 = 1,173.28 : x
  2. Step 2: Convert to fraction form
    3,122.45/4,682.30 = 1,173.28/x
  3. Step 3: Cross multiply
    3,122.45x = 4,682.30 × 1,173.28
  4. Step 4: Simplify right side
    3,122.45x = 5,493,648.94
  5. Step 5: Solve for x
    x = 5,493,648.94/3,122.45
  6. Step 6: Final answer
    x = 1,759.40

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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.