Home / 2,312.96-3,469.51-669.88

Finding the Fourth Proportional to 2,312.96, 3,469.51 and 669.88

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Solution

The fourth proportional to 2,312.96, 3,469.51 and 669.88 is: 1,004.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.96 : 3,469.51 = 669.88 : x
  2. Step 2: Convert to fraction form
    2,312.96/3,469.51 = 669.88/x
  3. Step 3: Cross multiply
    2,312.96x = 3,469.51 × 669.88
  4. Step 4: Simplify right side
    2,312.96x = 2,324,138.01
  5. Step 5: Solve for x
    x = 2,324,138.01/2,312.96
  6. Step 6: Final answer
    x = 1,004.83

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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.