Home / 2,329.79-3,489.42-1,231.43

Finding the Fourth Proportional to 2,329.79, 3,489.42 and 1,231.43

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Solution

The fourth proportional to 2,329.79, 3,489.42 and 1,231.43 is: 1,844.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,329.79 : 3,489.42 = 1,231.43 : x
  2. Step 2: Convert to fraction form
    2,329.79/3,489.42 = 1,231.43/x
  3. Step 3: Cross multiply
    2,329.79x = 3,489.42 × 1,231.43
  4. Step 4: Simplify right side
    2,329.79x = 4,296,976.47
  5. Step 5: Solve for x
    x = 4,296,976.47/2,329.79
  6. Step 6: Final answer
    x = 1,844.36

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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.