Home / 3,457.80-5,176.44-2,221.47

Finding the Fourth Proportional to 3,457.80, 5,176.44 and 2,221.47

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Solution

The fourth proportional to 3,457.80, 5,176.44 and 2,221.47 is: 3,325.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.80 : 5,176.44 = 2,221.47 : x
  2. Step 2: Convert to fraction form
    3,457.80/5,176.44 = 2,221.47/x
  3. Step 3: Cross multiply
    3,457.80x = 5,176.44 × 2,221.47
  4. Step 4: Simplify right side
    3,457.80x = 11,499,306.17
  5. Step 5: Solve for x
    x = 11,499,306.17/3,457.80
  6. Step 6: Final answer
    x = 3,325.61

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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.