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Finding the Fourth Proportional to 1,450.80, 2,173.80 and 1,234.80

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Solution

The fourth proportional to 1,450.80, 2,173.80 and 1,234.80 is: 1,850.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.80 : 2,173.80 = 1,234.80 : x
  2. Step 2: Convert to fraction form
    1,450.80/2,173.80 = 1,234.80/x
  3. Step 3: Cross multiply
    1,450.80x = 2,173.80 × 1,234.80
  4. Step 4: Simplify right side
    1,450.80x = 2,684,208.24
  5. Step 5: Solve for x
    x = 2,684,208.24/1,450.80
  6. Step 6: Final answer
    x = 1,850.16

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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.