Home / 3,126.45-4,317.75-2,704.80

Finding the Fourth Proportional to 3,126.45, 4,317.75 and 2,704.80

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Solution

The fourth proportional to 3,126.45, 4,317.75 and 2,704.80 is: 3,735.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.45 : 4,317.75 = 2,704.80 : x
  2. Step 2: Convert to fraction form
    3,126.45/4,317.75 = 2,704.80/x
  3. Step 3: Cross multiply
    3,126.45x = 4,317.75 × 2,704.80
  4. Step 4: Simplify right side
    3,126.45x = 11,678,650.20
  5. Step 5: Solve for x
    x = 11,678,650.20/3,126.45
  6. Step 6: Final answer
    x = 3,735.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.