Home / 2,231.68-3,350.79-2,192.31

Finding the Fourth Proportional to 2,231.68, 3,350.79 and 2,192.31

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Solution

The fourth proportional to 2,231.68, 3,350.79 and 2,192.31 is: 3,291.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.68 : 3,350.79 = 2,192.31 : x
  2. Step 2: Convert to fraction form
    2,231.68/3,350.79 = 2,192.31/x
  3. Step 3: Cross multiply
    2,231.68x = 3,350.79 × 2,192.31
  4. Step 4: Simplify right side
    2,231.68x = 7,345,970.42
  5. Step 5: Solve for x
    x = 7,345,970.42/2,231.68
  6. Step 6: Final answer
    x = 3,291.68

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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.