Home / 3,231.43-4,457.23-2,221.76

Finding the Fourth Proportional to 3,231.43, 4,457.23 and 2,221.76

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Solution

The fourth proportional to 3,231.43, 4,457.23 and 2,221.76 is: 3,064.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.43 : 4,457.23 = 2,221.76 : x
  2. Step 2: Convert to fraction form
    3,231.43/4,457.23 = 2,221.76/x
  3. Step 3: Cross multiply
    3,231.43x = 4,457.23 × 2,221.76
  4. Step 4: Simplify right side
    3,231.43x = 9,902,900.91
  5. Step 5: Solve for x
    x = 9,902,900.91/3,231.43
  6. Step 6: Final answer
    x = 3,064.56

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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.