Home / 2,317.67-3,198.36-1,255.42

Finding the Fourth Proportional to 2,317.67, 3,198.36 and 1,255.42

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Solution

The fourth proportional to 2,317.67, 3,198.36 and 1,255.42 is: 1,732.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.67 : 3,198.36 = 1,255.42 : x
  2. Step 2: Convert to fraction form
    2,317.67/3,198.36 = 1,255.42/x
  3. Step 3: Cross multiply
    2,317.67x = 3,198.36 × 1,255.42
  4. Step 4: Simplify right side
    2,317.67x = 4,015,285.11
  5. Step 5: Solve for x
    x = 4,015,285.11/2,317.67
  6. Step 6: Final answer
    x = 1,732.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.