Home / 1,231.56-1,849.16-1,195.12

Finding the Fourth Proportional to 1,231.56, 1,849.16 and 1,195.12

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Solution

The fourth proportional to 1,231.56, 1,849.16 and 1,195.12 is: 1,794.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.56 : 1,849.16 = 1,195.12 : x
  2. Step 2: Convert to fraction form
    1,231.56/1,849.16 = 1,195.12/x
  3. Step 3: Cross multiply
    1,231.56x = 1,849.16 × 1,195.12
  4. Step 4: Simplify right side
    1,231.56x = 2,209,968.10
  5. Step 5: Solve for x
    x = 2,209,968.10/1,231.56
  6. Step 6: Final answer
    x = 1,794.45

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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.