Home / 2,312.94-3,469.40-669.48

Finding the Fourth Proportional to 2,312.94, 3,469.40 and 669.48

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Solution

The fourth proportional to 2,312.94, 3,469.40 and 669.48 is: 1,004.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.94 : 3,469.40 = 669.48 : x
  2. Step 2: Convert to fraction form
    2,312.94/3,469.40 = 669.48/x
  3. Step 3: Cross multiply
    2,312.94x = 3,469.40 × 669.48
  4. Step 4: Simplify right side
    2,312.94x = 2,322,706.60
  5. Step 5: Solve for x
    x = 2,322,706.60/2,312.94
  6. Step 6: Final answer
    x = 1,004.22

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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.