Home / 2,405.50-3,608.84-1,172.63

Finding the Fourth Proportional to 2,405.50, 3,608.84 and 1,172.63

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Solution

The fourth proportional to 2,405.50, 3,608.84 and 1,172.63 is: 1,759.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.50 : 3,608.84 = 1,172.63 : x
  2. Step 2: Convert to fraction form
    2,405.50/3,608.84 = 1,172.63/x
  3. Step 3: Cross multiply
    2,405.50x = 3,608.84 × 1,172.63
  4. Step 4: Simplify right side
    2,405.50x = 4,231,834.05
  5. Step 5: Solve for x
    x = 4,231,834.05/2,405.50
  6. Step 6: Final answer
    x = 1,759.23

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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.