Home / 1,209.21-1,803.97-1,175.73

Finding the Fourth Proportional to 1,209.21, 1,803.97 and 1,175.73

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Solution

The fourth proportional to 1,209.21, 1,803.97 and 1,175.73 is: 1,754.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209.21 : 1,803.97 = 1,175.73 : x
  2. Step 2: Convert to fraction form
    1,209.21/1,803.97 = 1,175.73/x
  3. Step 3: Cross multiply
    1,209.21x = 1,803.97 × 1,175.73
  4. Step 4: Simplify right side
    1,209.21x = 2,120,981.65
  5. Step 5: Solve for x
    x = 2,120,981.65/1,209.21
  6. Step 6: Final answer
    x = 1,754.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.