Home / 2,505.20-3,450.48-2,173.64

Finding the Fourth Proportional to 2,505.20, 3,450.48 and 2,173.64

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Solution

The fourth proportional to 2,505.20, 3,450.48 and 2,173.64 is: 2,993.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,505.20 : 3,450.48 = 2,173.64 : x
  2. Step 2: Convert to fraction form
    2,505.20/3,450.48 = 2,173.64/x
  3. Step 3: Cross multiply
    2,505.20x = 3,450.48 × 2,173.64
  4. Step 4: Simplify right side
    2,505.20x = 7,500,101.35
  5. Step 5: Solve for x
    x = 7,500,101.35/2,505.20
  6. Step 6: Final answer
    x = 2,993.81

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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.