Home / 2,150.75-3,224.85-917.53

Finding the Fourth Proportional to 2,150.75, 3,224.85 and 917.53

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Solution

The fourth proportional to 2,150.75, 3,224.85 and 917.53 is: 1,375.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,150.75 : 3,224.85 = 917.53 : x
  2. Step 2: Convert to fraction form
    2,150.75/3,224.85 = 917.53/x
  3. Step 3: Cross multiply
    2,150.75x = 3,224.85 × 917.53
  4. Step 4: Simplify right side
    2,150.75x = 2,958,896.62
  5. Step 5: Solve for x
    x = 2,958,896.62/2,150.75
  6. Step 6: Final answer
    x = 1,375.75

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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.