Home / 1,231.55-1,849.14-1,195.10

Finding the Fourth Proportional to 1,231.55, 1,849.14 and 1,195.10

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Solution

The fourth proportional to 1,231.55, 1,849.14 and 1,195.10 is: 1,794.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.55 : 1,849.14 = 1,195.10 : x
  2. Step 2: Convert to fraction form
    1,231.55/1,849.14 = 1,195.10/x
  3. Step 3: Cross multiply
    1,231.55x = 1,849.14 × 1,195.10
  4. Step 4: Simplify right side
    1,231.55x = 2,209,907.21
  5. Step 5: Solve for x
    x = 2,209,907.21/1,231.55
  6. Step 6: Final answer
    x = 1,794.41

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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.