Home / 2,149.74-3,224.70-669.96

Finding the Fourth Proportional to 2,149.74, 3,224.70 and 669.96

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Solution

The fourth proportional to 2,149.74, 3,224.70 and 669.96 is: 1,004.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.74 : 3,224.70 = 669.96 : x
  2. Step 2: Convert to fraction form
    2,149.74/3,224.70 = 669.96/x
  3. Step 3: Cross multiply
    2,149.74x = 3,224.70 × 669.96
  4. Step 4: Simplify right side
    2,149.74x = 2,160,420.01
  5. Step 5: Solve for x
    x = 2,160,420.01/2,149.74
  6. Step 6: Final answer
    x = 1,004.97

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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.