Home / 2,815.53-4,224.57-1,172.44

Finding the Fourth Proportional to 2,815.53, 4,224.57 and 1,172.44

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Solution

The fourth proportional to 2,815.53, 4,224.57 and 1,172.44 is: 1,759.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.53 : 4,224.57 = 1,172.44 : x
  2. Step 2: Convert to fraction form
    2,815.53/4,224.57 = 1,172.44/x
  3. Step 3: Cross multiply
    2,815.53x = 4,224.57 × 1,172.44
  4. Step 4: Simplify right side
    2,815.53x = 4,953,054.85
  5. Step 5: Solve for x
    x = 4,953,054.85/2,815.53
  6. Step 6: Final answer
    x = 1,759.19

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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.